4. The Threshold In Nature and In Man

How was it that men of olden times feared knowledge which today is the common property of all mankind? In my book Die Ratsel der Philosophie[^1], I have described the changes that have come about in man's mind and soul since early Greek times. The Greek had not a self-consciousness that was fully detached from the external world. When he thought about the world, he felt himself, so to speak, “grown together” with it; he was as closely united with it as we are to-day in the act of sense-perception. For him thought was also, in a manner speaking, sense-perception. Red, blue, G, C sharp—these are for us sense-perceptions; but thought we ourselves produce by inner activity. For the Greek this kind of inner activity did not yet exist. Just as we get red, green, G, C sharp from sense-perception, so did he get the thoughts too from the external world. He had not yet the independence that comes from the comprehension of self. Only quite gradually has the perception and understanding of the self developed to what it is to-day. Self-consciousness has grown steadily stronger in the course of time, and man has thereby detached himself from surrounding Nature. He has learned to look into himself, inwardly to comprehend himself as something that acts independently. In doing so he has placed himself over against Nature; he stands outside her, that he may then contemplate her inner being from without. And with this detachment of thought from external objective life is connected also the birth of the feeling of freedom, that sense of freedom which is in reality a product only of the last few centuries.