Great art is more than a transient refreshment. It is something which adds to the permanent richness of the soul's self-attainment. It justifies itself both by its immediate enjoyment, and also by its discipline of the inmost being. Its discipline is not distinct from enjoyment but by reason of it. It transforms the soul into the permanent realization of values extending beyond its former self.

Civilizations can only be understood by those who are civilized.

Ninety percent of our lives is governed by emotion.

Not ignorance, but ignorance of ignorance, is the death of knowledge.

There is a technique, a knack, for thinking, just as there is for doing other things. You are not wholly at the mercy of your thoughts, any more than they are you. They are a machine you can learn to operate.

Thus the negative perception is the triumph of consciousness.

It is the business of the future to be dangerous; and it is among the merits of science that it equips the future for its duties.