The paradox is now fully established that the utmost abstractions are the true weapons with which to control our thought of concrete fact.

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.

The aims of scientific thought are to see the general in the particular and the eternal in the transitory.

An enormous part of our mature experience cannot not be expressed in words.

Art flourishes where there is a sense of adventure.

In a sense, knowledge shrinks as wisdom grows: for details are swallowed up in principles.

The many become one and are increased by one.