Lecture VII
It is spiritual science that is able to know these material facts. (I have said this often.) Materialistic science knows nothing about nutrition; it has no idea what is healthy food for humanity. That is precisely the characteristic of materialism, that it thinks and thinks and thinks—and knows nothing. The truth is finally this: that if one really wants to participate in life, above all one has to know something! Those are the things I wanted to say about nutrition.
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