Sacred are the lips from which has issued only truth.

Insolence is not logic; epithets are the arguments of malice.

I love to think of the whole universe together as one eternal fact. I love to think that everything is alive; that crystallization is itself a step toward joy. I love to think that when a bud bursts into blossom: it feels a thrill. I love to have the universe full of feeling and full of joy, and not full of simple dead, inert matter, managed by an old bachelor for all eternity.

As more people become more intelligent they care less for preachers and more for teachers.

Life is a narrow vale between the cold and barren peaks of two eternities. We strive in vain to look beyond the heights. We cry aloud

Our civilization is not Christian. It does not come from the skies. It is not a result of inspiration. It is the child of invention, of discovery, of applied knowledge - that is to say, of science. When man becomes great and grand enough to admit that all have equal rights; when thought is untrammeled; when worship shall consist in doing useful things; when religion means the discharge of obligations to our fellow-men, then, and not until then, will the world be civilized.

It is hard to overstate the debt we owe to the men and women of genius.