609.
It does not suffice for you to see in what ignorance man and beast now live; you must also have and learn the desire for ignorance. It is necessary that you should know that without this form of ignorance life itself would be impossible, that it is merely a vital condition under which, alone, a living organism can preserve itself and prosper: a great solid belt of ignorance must stand about you.
610.
Science—the transformation of Nature into concepts for the purpose of governing Nature—that is part of the rubric means.
But the purpose and will of mankind must grow in the same way, the intention in regard to the whole.
611.
Thought is the strongest and most persistently exercised function in all stages of life—and also in every act of perception or apparent experience! Obviously it soon becomes the mightiest and most exacting of all functions, and in time tyrannises over other powers. Ultimately it becomes "passion in itself."
612.
The right to great passion must be reclaimed for the investigator, after self-effacement and the cult of "objectivity" have created a false order of rank in this sphere. Error reached its zenith when Schopenhauer taught: in the release from passion and in will alone lay the road to "truth," to knowledge; the intellect freed from will could not help seeing the true and actual essence of things. The same error in art: as if everything became beautiful the moment it was regarded without will.
613.