The young man who has not wept is a savage, and the older man who will not laugh is a fool.

Society itself is an accident to the spirit, and if society in any of its forms is to be justified morally it must be justified at the bar of the individual conscience.

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

Old places and old persons in their turn, when spirit dwells in them, have an intrinsic vitality of which youth is incapable, precisely, the balance and wisdom that come from long perspectives and broad foundations

To be happy you must have taken the measure of your powers, tasted the fruits of your passion, and learned your place in the world.

The fly that prefers sweetness to a long life may drown in honey.

Whoever it was who searched the heavens with a telescope and found no God would not have found the human mind if he had searched the brain with a microscope.