There is no such thing on earth as an uninteresting subject; the only thing that can exist is an uninterested person.

Teach to the young, men's enduring truths, and let the learned amuse themselves with their passing errors.

The poetry of art is in beholding the single tower; the poetry of nature in seeing the single tree; the poetry of love in following the single woman; the poetry of religion in worshipping the single star.

Agnostic is the Greek word, for the Latin word, for ignorant

There are two kinds of rebellion. The first is one in which the slave demands something that the tyrant has got. The second is one in which he demands something that the tyrant has not got.

Even in a minute instance, it is best to look first to the main tendencies of Nature. A particular flower may not be dead in early winter, but the flowers are dying; a particular pebble may never be wetted with the tide, but the tide is coming in. To the scientific eye all human history is a series of collective movements, destructions or migrations, like the massacre of flies in winter or the return of birds in spring.

It is the first law of practical courage. To be in the weakest camp is to be in the strongest school.