Lecture IV

I now wish to repeat what many of you may have already heard me say.[^4] On the one side, we have the natural scientific world concept. It supposes that by means of its facts it can determine something about the course of the universe, in particular, that of the earth. And although it may consider its assertions to be hypothetical, they are imprinted into humanity's whole thinking, attitude and feeling. Our earthly existence is traced back to a kind of nebular condition. It is thought that everything arising out of this nebula is brought about entirely through the compulsion of natural laws. Again, the final condition of our earth's existence is also viewed as being based upon inflexible imperative laws, and concepts are formed about how the earth will meet destruction. Scientists base this kind of view on a widely accepted fundamental concept—even taught to school children—that the substance of the entire universe is indestructible, regardless of whether it is pictured as consisting of atoms, ions or the like. It is thought that at the beginning of earth's formation this substance was in some way compressed, then changed and metamorphosed, but that fundamentally the same substance is present today that existed at the beginning of earth evolution and that it will be present at the end, although compressed in a different form. It is supposed that this substance is indestructible, that everything consists only of transformations of this substance. The concept of the so called conservation of energy was added to this by assuming that in the beginning there were a number of forces which are then pictured as undergoing changes. Basically, the same sum of forces is again imagined to exist in the final condition of earth.