# Scientific Disciplines and Anthroposophy

## GA 73a — 14 January 1921, Stuttgart

### 13. The Relationships Between Spiritual Science and Individual Academic Subjects III

Distinguished Audience! It has often been emphasized, and with good reason, how the division of labor, which is an external phenomenon, has had a damaging effect on the more recent development of humanity. And anyone who takes an unbiased look at the development of social life in modern times cannot help but realize the profound effect this has had on the individual human being, who in earlier times performed tasks to which he was, so to speak, also bound spiritually. Just think of the inner satisfaction that lay in the old crafts, where what one made was transparent in terms of its place in the whole context of the human environment. The door lock that was once made by the craftsman could give him joy because he could see the path it took from his hand to its destination. How different things are today, when the individual person day after day, hour after hour, produces some individual part of a larger whole, without being able to have any interest in what emerges from his hand or from the machine by means of his hand, because he is not directly connected with the path that the thing in question takes from its maker to its final destination. This division of labor, which must, as it were, tie man to something that can never be of interest to him, and which must therefore make man extremely one-sided in his entire life, this division of labor, we will still have to deal with it in particular when we study the social process tomorrow.

But, my dear attendees, there is another division of labor in more recent times. And this other division of labor – even if it is less often emphasized, yes, even if it happens that its advantages are even praised when it is mentioned – this other division of labor, it basically intervenes much more deeply in the individual human being and thus in the whole of human life. And this division of labor, which is of course justified to a certain extent – that is not to be doubted – which above all had to arise necessarily in the historical development of mankind, but this division of labor, because it has not been sufficiently counterbalanced, has in the long run an even more damaging effect on human life as a whole than the one mentioned before. The division of labor has occurred in the field of knowledge and in everything connected with knowledge: it is the division of labor in the field of science. Today, if you go through the usual training as a scientist, you can become absorbed in a specialized science. You then absorb precisely the way of thinking, of imagining certain things, that has come about through the division into individual scientific disciplines and sub-disciplines and sub-sub-disciplines and so on. You don't just externalize, you externalize the soul. You condemn yourself, for example, to take in certain forms of ideas, to immerse yourself in the context of such ideas, and then you say that what fits into this context can be proven with strict exactness; but what is born out of a different context, you say you are not competent to judge.

But everything that man can know ultimately comes from the totality of human nature; and that in turn, which is present at the center of man as a deep soul need, strives for wholeness. Basically, when the one-sidedness becomes so strong without a counterweight, as it has become over time, it is ultimately a mutilation of the soul, from which man must suffer greatly. Such a mutilation of the soul will ultimately lead to a situation in which the bearers of spiritual culture can no longer communicate with each other. It leads to the fact that the bearer of spiritual culture in any field of expertise lives in ideas that are absolutely not applicable to another field of expertise, that he lives in ideas that immediately appear rigid and inapplicable when he wants to grasp something that lies in another field of expertise.

When we consider that all human activity and endeavor should ultimately depend on those who are trained as spiritual guides, then we must admit that under this professional mutilation of the soul life, for which a counterweight is created today to a highly insufficient extent, these personalities become unsuitable to be real spiritual guides. Today it is obvious that humanity lacks spiritual direction, that humanity lacks appropriate guidance. More than anything else, this is to blame for the catastrophic events of our time. And it is precisely out of a real, not superficial, but thorough knowledge of this state of affairs that what is being attempted in Dornach, where the Goetheanum is the School of Spiritual Science, has emerged. On the one hand, it should fully recognize the necessity of dividing and structuring all knowledge into specialized subjects, but on the other hand, it should build the necessary bridges between these subjects. In other words, it should develop one-sided personalities, as they must become through the specialized subjects, into whole personalities, into total personalities. In this way, spiritual science seeks to fulfill one of the most important tasks of our time. This School of Spiritual Science cannot take the view that the demands of the time can be met today simply by transmitting what is taught in our specialized academic subjects through all kinds of channels to the broad masses of the people.

Of course, these popular universities, popular education methods, and so on, come from the very best intentions. But can we really hope that what is done in this way under the cover of our educational institutions can have a truly fruitful effect when it is carried into the broad masses of the people, when it is realized how the one-sidedness of knowledge and of insight into the individual specialized sciences has contributed to our getting into these catastrophic times, which a certain author has characterized by saying that modern civilization must inevitably sail into its own downfall? Can we still have hope when we realize how much this one-sidedness has contributed to our catastrophes? If we see through this, we must say to ourselves: That which has worked in such a way in a small layer of humanity that it has led into catastrophe must surely lead into catastrophe if it is carried out into the broad masses of humanity. In founding the School of Spiritual Science at Dornach, this insight was the basis for the conviction that it is not only necessary to popularize today's education, to spread it out into the broad masses of humanity, but that the opposite process is also necessary: to bring a new kind of knowledge into our universities, so that something different can come from them than what one cannot really hope to popularize in a way that is particularly fruitful for the broad masses. of bringing a new kind of knowledge into our universities, so that something different can come from these universities than what one cannot really hope will have a particularly fruitful effect on the broad masses if it becomes more popular.

This may sound radical, but anyone who takes a broad view of the development process of humanity in our age will inevitably come to this conclusion through a faithful observation of the facts. I would like to discuss something specific in order to show you how anthroposophically oriented spiritual science, as it is meant here, works everywhere to avoid pigeonholing people with their concepts and ideas in any one subject area, but to educate them in this subject area in such a way that they can find their way from it to an understanding of other branches of science. Of course, one does not need to be decisive in some way in every field – under today's conditions one cannot be – but human coexistence is only possible if personalities work together in such a way that the ideas gained from the individual fields can be used to at least understand the other fields. For mutual understanding among people is what we must strive for if we want to make progress in the process of human development, which today shows so many signs of decline.

When you see a physical process, let us say how, under the influence of the warming of a body, that which the physicist says is released as heat, heat that was previously latent, that was, so to speak, hidden inside the body, when you see that and then look at the ideas that the physicist has of such a release of heat, which under certain conditions had not previously appeared externally but was bound internally to the body, then you will say: it would not occur to the physicist, when he sees heat heat, which was previously latent and now becomes free heat, to speak only of a straight-line development and to say that the appearance of the free heat is based on the fact that what was there before developed to include the free heat. One gets used to not speaking in abstract terms here, but trying to gain concrete insights into the process. Much in such processes may still be unexplained, many a hypothesis may still be needed, but one tries, at least in the field of physics, not to simply put forward such abstract ideas as “development”, but one tries to penetrate into what has actually happened when free heat from latent heat, from bound heat arises.

But if we now turn to another field, you will see how, I would say, the spirit of abstraction takes hold of people because they have not yet been able to develop what they have developed in the field of physics another field, because it has not yet been possible to bridge the gap between a subject that has already undergone a certain training and a subject that has remained mutilated precisely because of the division of labor in the field of knowledge. The fact that individual people have become so immersed in their subjects that they no longer understand each other has taken hold of the scientific community itself, and has also had a one-sided effect on science itself, because the field of inorganic science has become powerful. Let us take the developing human being. We see how a person gradually develops from early childhood, from year to year, until they are an adult. We simply follow this development in a linear way. We really speak of it as if what a person achieves in the tenth year has simply resulted from a straight line of development from what he was in earlier years. We see the appearance of soul qualities at a certain time in the development of life; in some way the human being acquires the quality of thinking; he acquires other qualities that, as it were, emerge from the depths of his inner being to the surface of life. We do not observe the connection between physical and mental phenomena as intimately as we try to do so, for example, in the physical field that I have just mentioned. But it is necessary to transfer the same spirit of concrete observation, which we apply, for example, in the physical field, to a field where the phenomena are admittedly more complicated.

But if one makes an effort to enter into the complexity of the phenomena, then one can transfer the spirit from one area to another. But then one must proceed by saying to oneself: There are epochs in human life that, in a certain way, come to a close and give way to new epochs through significant turning points. Two such epochs in human development – of course there are also epochs in animal development, but I am only talking about human development now – two such epochs are, for example, the change of teeth towards the seventh year and then again sexual maturity towards the fourteenth year. The change of teeth and sexual maturation are such turning points. Now it is a matter of really grasping, through concrete observation, what happens in the development of human life up to these turning points.

Whoever observes this faithfully will find that, initially, something happens in physical development up to the change of teeth that must certainly be intimately related to this change of teeth. It is not enough to simply observe the human being from the outside, so to speak. It must be clear that what comes to a conclusion with the change of teeth, so that something similar no longer takes place in the organism in the following phase of life, permeates the whole organism. If we follow such a fact correctly in a concrete process of knowledge, we will say: something happens from birth or conception to the change of teeth, which is connected with such formative forces that then discharge in what occurs during the change of teeth. And if we then turn to the more spiritual life of man, we will find that something equally far-reaching is taking place in the soul and spirit, just as something deeply invasive is taking place in the body with the change of teeth; we will find that, roughly at the same time in life that the change of teeth brings something to a conclusion in the body, something arises that is on the ascendant. We must learn to observe these phenomena just as we observe external physical phenomena. And if we observe them in the same spirit, we shall see that the whole configuration of the child's soul is such as to enable the child to form memories and recollections in a more conscious way; we shall see that the child is able to grasp the indeterminate, indistinct nature of his earlier ideas and perceptions and to give them sharper contours; we shall see that there is a mighty change in the whole way of thinking. to grasp in sharper contours the indeterminacy of earlier concepts, the lack of sharp contours of these concepts; one will see that a powerful change occurs in the whole way of the spiritual-soul life through the formation of concepts.

And anyone who now looks at things with a certain understanding of such processes will seek the connection between what has worked physically on the one hand, what has been discharged and has found a certain conclusion, and what arises as a new formation, as something that unfolds anew, the conditions for the emergence of which must become clear. And if he follows such concepts in reality as thoroughly and in as much detail as possible, he will come to say to himself: That which has been working in the organism until the change of teeth, that which has been working organically, that which was bound to the organism, has been released when the organism has reached a certain, a preliminary point of closure with the change of teeth. It is released, it is transformed into the power of forming images, of outlining these images, into the power of forming conscious memory images, while the earlier memory images were more unconscious. So you can see how something that used to work in the body is released and now works in the soul and spirit. And you gain an insight into how what now occurs consciously as the formation of concepts, as a process of remembering, how it previously worked organically in the organism.

In this way, one comes to understand the whole of human education and organization. One moves away from merely fantasizing and speculating about the spiritual and soul life; one comes to grasp its connection with the physical. Then one gets out of the habit of speculating and forming hypotheses in the scientific field at all. One no longer asks: What can be speculated in order to grasp the spiritual-soul? Instead, one looks, for example, at the concrete development in the organism, at how it finally, so to speak, pushes out its teeth, and one must then acknowledge how the same thing that was bound to the organism, working hidden in the organism, later becomes free. We can follow this in its soul-spiritual form by looking at the soul-spiritual itself, as it has developed in the child; and so we find the connection between the soul-spiritual and the physical-organic by following the things in a concrete way. One no longer constructs an abstract psychology, as is often the case today, which has little more than some word content, but one studies concretely the behavior of one to the other, and one sees how that which is present in a later stage was actually observable in an earlier stage. One arrives at a complete empiricism. In the same way, we can study the other turning point in life, that of sexual maturity. On the one hand, we observe the organic process that culminates in sexual maturity. On the other hand, we ask ourselves: What develops in the soul and spirit? What happens to the forces that are no longer needed for the formation of something organic after sexual maturity, because they have brought the organic to a certain conclusion? What happens to these forces that have been, so to speak, embedded in the organic up to that point? — That which works in the particular nature of the will impulses is present in a completely different way after sexual maturity than before. Before sexual maturity, they are absorbed in a very specific way into the organic processes. But when they are no longer absorbed in the organic processes, they do not become free. Instead, they connect to the organism in a certain more intimate way. Thus, at this turning point in his life, man becomes more master of his organism than he was before. The will integrates itself more intimately and more intensely with the organism than was previously the case.

If we understand how the soul and spirit are connected to the physical and organic, then we can – by using such concepts, which first become mobile in themselves and are thus also suitable for becoming ever richer internally, so that reality can be seen through more and more can be seen through more and more. One can then also study certain processes in the human organism, which are nothing other than the external expression of what one sees through inwardly. For example, the process of voice change, which in the male individual is connected with sexual maturity. A similar process takes place in the female individual, only it is more widespread throughout the whole organism. One only comes to a complete understanding of these processes when one sees in such a way how, through what takes place in the change of voice or in other processes in the female organism, the will energy connects more inwardly, more penetratingly with the organism. And at the same time one comes to understand how what develops up to the change of teeth culminates particularly intensely in the formation of the human head, in which the teeth are formed, while what then emerges at the time of sexual maturity takes hold of the whole rest of the organism, with the exception of the head. All this becomes immediately clear in the contemplation. And through this one attains an inner knowledge, an inner contemplation of the human being. But such an approach can, in turn, have an enormously fruitful effect on the sciences, which, after all, lead quite particularly to certain limits of knowledge, which at the same time are limits, regrettable limits, of human practical reality.

Let us consider, for example, what happens when we try to examine the medical sciences as they present themselves to us today from the point of view of what is unsatisfactory about them. I cannot go into the particularly significant details here, but I would like to point out something that is already a key question. How can we actually unite what is now our natural world view with what is called a disease process in the physical organism? Anyone who studies the disease process will have to say - and this is quite natural - that this disease process takes place according to natural laws. So in the disease process we have something that we have to understand according to natural laws. On the other hand, however, we also have something in the so-called healthy human organism that must be understood according to natural laws; at least we have a certain current of natural laws in the healthy human organism. We express what we recognize in this area of the natural organization of the human being in physiology. And we express what we can recognize in the disease process as a lawfulness, which must also be a natural lawfulness, in pathology. There must now be a bridge between physiology and pathology. It must be possible to gain some kind of insight into how one natural law behaves in relation to the other. And a natural science, or rather a natural scientific way of thinking, as we have it today, cannot lead to any understanding in this field, at least not to an understanding that can be put into practice. That is why we see how, today, the healing arts basically stand unsatisfactorily alongside pathology. I still look back to the time when, within the then Viennese school of medical science, what was then called 'medical nihilism' had taken hold. Celebrities in the field of medicine at that time actually lived in complete scepticism with regard to therapy. To a large extent, they claimed that one could only follow the processes of the diseases, that one could only speak of a more or less rational pathology, but that one could not actually speak of any connection between the intervention of the remedy and the processes of the organism. Therefore, such physicians limited themselves to observing the disease process for wide areas of disease, paying attention when it went into excess in one direction or the other, but basically they did not believe in a rational healing method. They spoke about this quite openly.

Now, of course, there is no longer such skepticism about these things, but in practice it is basically still the case. And that is why it is so difficult for a real medical science to penetrate through all the possible amateurism and quackery that can flourish precisely because it is so difficult to raise awareness of what real science actually is in this field. But this is connected with our scientific view in general. It is connected with something that one believes – rightly, but in a one-sided way – to be a part of the great scientific insights of the 19th century, something that is called the doctrine of descent. In an extraordinarily astute way, in a way that has led individual researchers to the most scrupulous methods of observation, the developmental series of organisms from the imperfect to the more perfect has been sought and placed at the top of the human being, this whole human being as he stands before us today in his organization. To a certain extent, his organism in its entirety has been regarded as a transformation of the animal organism. This has only been possible because certain inner relationships of the human organism have been the subject of completely false concepts. Naturally, I can only hint at these things. They will arise out of a truly comparative genetic-morphological approach to embryology, out of a morphological consideration of the organs, out of a truly comparative genetic-morphological approach to embryology, out of the facts of embryology, in connection with the facts of life. Today, more or less everyone has the idea that, for example, we have something in the brain that can be seen as a complicated formation of what is present in the spinal cord as a nervous organism. In a sense, what is organized in the spinal cord is seen as the original, and what is present in the brain is seen as having emerged from this spinal cord in a complicated way. You cannot interpret the phenomena in this way. If you follow the facts of embryology in an unbiased way, you will get a completely different view. One will come to the view that what is present in the brain can be traced back to such a simpler organization as is present in the spinal cord, but that the spinal cord, as the further development of which the brain is to be regarded, must be thought of as lying more or less horizontally in the brain itself — if I may put it this way. In our present brain, what is spinal cord-like as a basis for our brain - going backwards from the forehead to the back of the head - is only ideally predisposed, so that one has to imagine the brain as a transformation of this formation, which today is only present in the brain in an idealized form, while what we have today in man as the spinal cord can be seen as emerging from the same formative laws as the human brain, but remaining at an earlier stage. So when we look at the spinal cord and the brain in context, we have to say that both are based on the same formative laws, but the brain has been brought to a further stage through this formation. It is only at a later point in phylogeny that the laws of formation intervene in the spinal cord, and it does not reach the same level as the brain. Therefore, the spinal cord is to be seen as the later formation, the initial stage of which lies in an earlier period in the genesis of humanity. The brain is to be placed at an even earlier stage, and it is to be seen as more advanced, so that one must say: the spinal cord is phylogenetically the later formation, which has only remained at an earlier stage, while the brain has been brought to a further stage by this formation.

This is how one has to imagine it with much of the human organism, and this is how one has to think of the entire limb organism, so to speak, if one wants to understand its morphological riddles. The appendage organism must be seen as a later formation that has been left behind at an earlier stage. What emerges in the main formation must be placed at an earlier beginning and thought of as having arrived at a later stage of development. In a sense, one has to see in the human head what has emerged through metamorphosis, through transformation from very early ancestors, and what is present in the appendages of the human being - even if they are larger than the head - has to be seen as added limbs that have remained at an earlier stage.

When one has a clear understanding of human morphology, the first thing one does is to place it in the right relationship to the animal world. Then one says to oneself: if one goes back in the series of time, one sees that what has become of the human head is the most important transformation of its earlier organization. This can be traced back to earlier animal forms – I cannot go into the details now, so the whole thing will seem paradoxical – whereas the human form as a whole must be seen in such a way that the rest of the formation, which is attached to the head, has arisen under conditions that affect the overall form of man quite differently than the modern environment affects the overall form of the animal. Once we understand these relationships, we will relate the human form to the animal world in a completely different way than is the case today. Then, something else comes into play: when one looks at the human head and sees the particular relationships between the soft and bony parts, and compares this, especially in their position, with the relationships between the soft and bony parts in the attached limbs, then one comes to form ideas about the inner workings of the laws of formation in the human organism. And one comes to realize that the human head is not only in a continuous development, but that it carries something in itself, which one initially has to see not as an evolution, but as a devolution, as a retrogressive development, which is only maintained by the fact that this head organism is connected to the rest of the human organism and is maintained by it.

In the human head organization, we are dealing with a continuous process of degeneration, which is, however, nourished by the appendages of the head. While the head itself is organized for degeneration through its organization, we are dealing with a continuous dying in the human head. The processes that are ascending and vitalizing are one thing; the other processes are those that are held back, spread out in the line of time, which, when compressed into an instant, appear as the death of the whole organism. One could also say: what comes over the whole organism in an instant with death could be regarded, mathematically expressed, as an integral for which one seeks the relevant differential. And then one would come to find, distributed over the time line, in the differential series into which one has resolved the integral, that which takes place as a retrogressive development, a devolution in the human main organism. This devolution, however, is found to be the actual basis for the process of imagining and of sensing. We can therefore say that it is impossible to regard what underlies human growth, what underlies ascending development, as the organizing forces, and also as the basis for the processes of soul and spirit. On the contrary! Where the organism is being broken down, the soul and spirit arise precisely above the breakdown, precisely above the destruction of the organic. One cannot gain insight into the connection between the physical body and the soul in man if one does not know that what one regards as the basis of the organization must not be regarded as the basis of the spiritual-soul process. The physical body must first break down, make way, give way, so that the spiritual-soul in man can take hold.

With these few words I have only hinted at how spiritual science does indeed open up a completely organic path, one that is not built on some kind of fantasy but on a true observation of human nature, and one that penetrates to the innermost core. It is truly not the result of arbitrary assertions or vague beliefs when the spiritual researcher says: That which is spiritual-soul in man is not bound to the physical organization, but to the physical disorganization, thus to that which must give way so that the spiritual-soul can arise. It is therefore no wonder that one can follow the spiritual-mental processes in the nervous organs, for to the same extent that any spiritual-mental process occurs, it must displace the corresponding physical organization, which even manifests itself as a physical breakdown. And we will only then arrive at a real connection between the spiritual-soul and physical-bodily processes when we no longer seek the physical-bodily processes as corresponding to the soul processes, but understand them as processes of disorganization, of dissolution, of secretion. If we follow these traces of the physical-bodily excretory processes, we have the true correlate of the mental-spiritual processes; and it is precisely this that guarantees their special individuality and independence in a truly scientific way.

But if you look at this process from the inside, precisely as the process of a human being, then you will no longer be able to place physiology and pathology side by side as it is done today – you just need to pick up any well-known textbook where the individual facts are simply listed one after the other, recorded without being able to evaluate them according to their connection in the whole human organization, so that the person who is guided by the principles of such a so-called science has nothing but individual facts juxtaposed. Things are quite different. In the human organism, on the one hand, we have the anabolic processes, and on the other hand, in terms of the threefold nature of the human organism, which I mentioned in earlier lectures, we also have the catabolic processes, since every anabolic process is simultaneously permeated by the catabolic process. Thus, in the human organism, we do not have a process that runs in a straight line, but rather a process that runs in one direction and is met by another process - an ascending process, a descending process. In so-called normal, healthy life, these two processes are in a certain relationship to each other. If one asserts itself at the expense of the other, then we have to look for the occurrence of the pathological in such a fact. And if we can differentiate the view that I have explained here – and it can be differentiated for the human organization down to the smallest detail – we will be able to penetrate the diseased organism in a rational way. No longer do we face these two currents in physiology and pathology with a sense of mystery. We know that this confrontation is necessary for the human being in a certain way, but that through processes, the description of which would take us too far afield at this point, one or the other can predominate. You will find this described if you engage with the spiritual scientific literature.

I will show you this by means of a specific example of how these things, which I have now presented to you more in the abstract, assert themselves in the concrete grasp of the human organization. You can study how, for example, the epidermal cells of the human being are transformed epithelial cells into sensory cells, just as the glandular cells are also transformed epithelial cells. In this process, which indirectly reveals the connection between the sensory cells and the glandular cells, you will be able to see how what I mentioned yesterday, with regard to the sensory perception of the outside world and the sensory perception of the human interior, can be followed anatomically and physiologically in this metamorphosis of the cells themselves. And then, if you pursue this further by studying the facts that are already available today in an entirely empirical way, you will find that there is a certain process that leads from epithelial cells to sensory cells; that is one current in the organization. We can also follow this current in the opposite direction: epithelial cells – glandular cells. This enables us to gradually ascend in our consideration of the human organization to the way in which the senses are formed from the main organization and from the related organization through a certain development of forces, as if from the inside out. We have localized what can be seen in this process. But since things are not schematically localized in the human being, we have to say that they are mainly localized in the head; but they are also present in the rest of the organism, just as certain senses are spread over the whole organism, while the head preferably contains the senses. Thus we can see how human nature pushes us to develop the sense organs out of itself; other areas are more organized in the direction of developing the epithelium into a glandular state. When we see these polar opposites, we will say: when looked at inwardly – and one must look at human nature inwardly, otherwise one cannot see through it – it all rests on the fact that the current in the organization runs from the inside out one time, the other time, so to speak, in the opposite direction, from the outside in. Here we have something again that develops in the human organism in one direction or the other. And now, my dear audience, it can happen that, due to very specific conditions in areas of the human organism that are otherwise predisposed to processes that run from the outside in, these areas are crossed in an incorrect way by processes that run from the inside out. However paradoxical it may sound, it must be said that in an area of the human organism that in its normal organization is only predisposed to develop glandular tissue, the tendency can arise to lead to a predisposition for a sensory organ formation process. In a certain way, the tendency is incorporated into the epithelial formation, which is otherwise only justified in the human organism where the senses develop. Of course this can occur because, to a lesser extent, everything in the human organism is embedded in everything else; one only has to distinguish it; it can also express itself in the head, which is a counter-process to the sense-forming process. One need only bear in mind that secretory organs are asserting themselves everywhere alongside the sense organs.

But what do we actually have here? You see, we have something here that, if expressed today, seems almost fantastical, because one has to resort to concepts that today's science does not want to accept at all, because, although they are fully rooted in reality, they are quite remote. But we shall never be able to penetrate what we observe in the world if we do not take metamorphosis seriously in this way, even where what has been metamorphosed is no longer at all similar to the original, if we do not regard even there, so to speak, a developed Goetheanism as an ideal for genuine scientific work. It must be said that in a certain area of the human organism, where normally only the tendency to form glands should be present, the tendency to form a sensory organ can be deposited, which then undergoes a sensory organ formation process. And here we have looked at the disease process that can be observed in carcinogenesis, in carcinoma. I will give a concrete example, I will not be embarrassed to cite something that is still laughed at today.

But I do not want to beat about the bush in the abstract, but I want to show that in spiritual science there is something that really penetrates into what is given in the individual fields of expertise, but in a way that can only be understood in relation to today's approach if one wants to proceed courageously in recognizing, really up to the consequences of what is in the beginnings today, in empirical reality. I have not hesitated to present such details to you, of which hundreds and hundreds could be presented to you from the field of spiritual science, so that you may see that this spiritual science does not ramble and prattle in vagueness, but that it sticks to the facts, penetrates everywhere into the facts, and does not talk about soul and spirit in abstract terms, throwing foggy theories over people's heads, which are basically only interpretations of traditional word meanings. Only through the spirit can one penetrate into the individual; one really penetrates spiritually every single thing that exists in the specialized sciences.

And a pathology such as this, which finds the opposite process in the physiological process, that is, in the process of glandular formation – here as a pathological process – such a science can build a bridge to a natural law of physiology and pathology. These are the perspectives that should be provided by the truly exact science of an anthroposophically oriented world view, in addition to the conscientious observation and external precision of methods in the individual modern scientific disciplines, which should be fully recognized. But if, on the one hand, we look at the human being in terms of his ascending and descending processes, then, on the other hand, we will find not only ascending and descending processes in nature, but also ascending and descending organizations. For example, we can follow the process of plant formation. In what Goethe gave in 1790 in his attempt to explain the metamorphosis of plants, only the first beginnings, the basics, are given. But if one continues to develop this method, one comes to see how this plant organization is to be viewed in its subtle subdivisions: how the flowering process takes place, what significance the polar contrast between the root, which grows downwards, and the flower and fruit, which grow upwards, has in the overall context of natural facts.

One then comes to examine, for example, how some process, say the movement of juices in the animal organism, is related to the movement of juices in the human organism. One comes to ascend from the plant to the animal organism and to see in what one encounters in the animal organization the corresponding processes in human nature. And then we also come to consider something like the contrast that exists in the process of plant formation outside of the human being and in the process in the human being. The plant builds its body on the basis of carbon. It deposits carbon in itself and separates oxygen. Man undergoes a similar process in his breathing in connection with the circulation of the blood, in the whole task of the blood circulation – but what happens there? There the carbon is bound to the oxygen, thus producing carbonic acid. We have here what is consolidated in the plant formation process, what is in a certain way external, present in the beginning in man, but which he then expels. We get a certain relationship between the plant formation process outside and that which underlies breathing in humans, which dilutes and breaks the process. And in turn, what is otherwise in the human organism is linked to breathing, and one can then compare that which is linked to the breakdown of these processes in the human organization and that which is linked to the build-up in the human organization. Let us assume that we find something in the human organism that represents a disease process in such a way as the beginning, the malformed beginning of a sense-formation process in cancer. Then, looking for what is in external nature, we can seek the opposite process. It will be possible to introduce it into the human organism by means of a remedy, and thereby have the same healing effect as the carbon has in the human organism, if I may put it this way, by supplying oxygen. It is identical. In this way one gains an inner insight into the connection between what is organized in man and external nature. One gains such insight that in what arises in external nature, one can rationally find the remedy that can serve for any corresponding process in the human organism.

All of this – you will gather this from the way I say it – is not based on phantasms; it is carried out as precisely as is possible in science. But we must work with concepts that can be flexibly applied to the various areas of reality. Our concepts must not be developed one-sidedly in certain specialized fields and then remain what is legitimately presented in the individual specialized fields; our concepts must become flexible so that we can immerse ourselves in the entire wide range of reality. Otherwise, we acquire such concepts with which we believe, in a strange way, to embrace the factual fields, but with which we in reality only remain distant from the factual fields. We have a remarkable example of this in our own time. Those who are familiar with such things will know how many theories about the ether there have been in the course of modern times; they know how attempts have been repeatedly made to characterize the ether as being sometimes rigid and sometimes fluid, depending on the phenomena that were thought to as arising from the interaction of ponderable matter with the ether, characterized the ether as sometimes rigid, sometimes fluid, until finally experiments in modern times are said to have shown that one cannot get ahead with all these old ether theories. The simple experiment that was conducted regarding certain conditions in the propagation of light – or, as it was said, in the transmission of light – this experiment is said to have shown that a special correction, a radical correction of the concept of ether, is needed. The experiment is as follows: If a light is made to flicker at a point A and this light is followed from point A to point B, then, if point B is in motion, that is, moving on, the light should arrive later than it would arrive at B according to the speed of light in physics if this point B were stationary. But what is calculated in theory does not arise in practice. And - I omit all transition links - that is where, with some intermediate links, the theory of relativity has found its roots, this theory of relativity, which now has as a result that the ether is completely abolished. But then one calculates with strange things, for example, that bodies can simply shorten themselves through the movement itself and the like. Now, you only need to study the relevant literature to see how certain concepts have become so rigid and fixed that they are then applied to reality in such a way that one believes one has grasped reality, but in fact remains extremely distant from it.

Spiritual science cannot follow such a path, which is actually formed only out of the rigidity of the concepts. Spiritual science pursues the corresponding phenomena — I mention this so that you can see how spiritual science can shine into such areas — and comes to recognize that the concept of ether is needed.

But because it does not create unjustified hypotheses, but assumes realities, the ether is revealed to it in the phenomena that are usually derived from the ether itself. On the other hand, you know that where we are dealing with an ether region, in the corresponding mathematical formula, where, in the case of ponderable matter, we insert the quantity with a plus sign for heat – but only for certain heat phenomena, those of radiant heat, of flowing heat – and that for light phenomena, for certain which then appear as chemical processes, and also in the phenomena of life, since negative signs have to be inserted into the corresponding mathematical formulas for certain quantities, which are to be modified by not only inserting negative quantities, but even by assuming the radiation from a point instead of the radiation from a periphery.

In short, spiritual science leads to an organization of the formulas in this exact scientific field, which expresses exactly what takes place between ponderable matter and the ether. One comes to an understanding of the real relationship between the so-called ether and ponderable matter. One comes to realize that if one simply uses the, shall we say, confused concept of mass in such a way that one says that one has to insert the effect of this mass or matter outwards with a positive sign, then one has to insert that which corresponds to the same in the ether with a negative sign. What is a compressive force in the one is a suction force in the other. And if we regard the ponderability of ponderable matter as a pushing force, then we must regard the imponderability of the ether as a suction force in relation to this pushing force. Then we can make do with the phenomena; then we do not need to abolish the ether and set a zero for it, but we can, as we do in another area, pass from plus to minus. I have given this example to show you that anthroposophically oriented spiritual science does not shrink from the fields that are strictly speaking exact science.

You see that this anthroposophically oriented spiritual science is called upon to restore order and to bring back to the natural order that which has been led away from its natural order in thinking, especially perhaps in those areas that are most confused today because people work with unhealthy concepts and even make seemingly epoch-making discoveries. Tomorrow, this will lead to a presentation of the views of social life. It will lead to concepts and impulses that enter into social life, into history, into cultural history, and also into linguistics - into concepts that are transformed from the rigidity in which they often remain today into liveliness. And this liveliness of concepts guarantees that anthroposophically oriented spiritual science can indeed build a bridge between the individual specialized sciences. And so what is to happen between anthroposophically oriented spiritual science and specialized sciences will have a very important significance for the development of humanity. The one-sidedness of the soul will be overcome, which in many cases has a paralyzing effect on the development of the personality. And when spiritual science can penetrate into the individual specialized sciences, we will again be able to have personalities on our educational paths who develop the whole human being in themselves. And that must be the case. This must be the case in particular when those who undergo a certain course of education legitimately want to place themselves as leaders in social life. And it is the spiritual that must be the guiding principle in social life. But only that spiritual can be the guiding principle in social life, can truly permeate humanity with that which leads to ascent and not to descent. Only that which, as scientifically sound, develops the whole human totality, only that can lead to such a healthy development of humanity.