We foresee no limit to scientific advancement in the future, and in scientific truth there is nothing dead; science is always a living and growing body of knowledge; but art on the contrary has many times run its course to an end, and exhausted its vital power.

You must find the ideas that have some promise in them... It is not enough to just have ideas.

Words are intermediary between thought and things. We express ourselves really not through words, which are only signs, but through what they signify - through things.

My first recollection of hearing Wendell Phillips is from my college days, though of course he was always one of my heroes, and I may have heard him before, for we were an anti-slavery family.

The sweetest roamer is a boy's young heart.

Defeat is not the worst of failures. Not to have tried is the true failure.

It is not meant that the artist, in arriving at truth, must follow the way of the scientist, or, in stating it, the way of the philosopher.