The man who would emancipate art from discipline and reason is trying to elude rationality, not merely in art, but in all existence.

Truth is a jewel which should not be painted over; but it may be set to advantage and shown in a good light.

Skepticism, like chastity, should not be relinquished too readily.

There is nothing sacred about convention; there is nothing sacred about primitive passions or whims; but the fact that a convention exists indicates that a way of living has been devised capable of maintaining itself.

The Soul is the voice of the body's interests.

Intolerance is a form of egotism, and to condemn egotism intolerantly is to share it.

The great difficulty in education is to get experience out of ideas.