On the Picture Nature of Man
It is most important that it should be understood through Anthroposophy that the ideas which a man gains by looking at outer Nature are inadequate for the observation of Man. The ideas which have taken possession of men's minds during the spiritual development of the last few centuries fail to realise this fact. Through them men have grown accustomed to thinking out natural laws, and to explaining by means of them the phenomena which are perceived by the senses. They then turn their attention to the human organism, and think that that too can be explained through bringing the laws of Nature to bear upon it.
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