I prefer the folly of enthusiasm to the indifference of wisdom.

We thank God for having created this world, and praise Him for having made another, quite different one, where the wrongs of this one are corrected.

Universal peace will be realized, not because man will become better, but because a new order of things, a new science, new economic necessities, will impose peace.

You become a good writer just as you become a good joiner: by planing down your sentences.

Distrust even Mathematics; albeit so sublime and highly perfected, we have here a machine of such delicacy it can only work in vacuo, and one grain of sand in the wheels is enough to put everything out of gear. One shudders to think to what disaster such a grain of sand may bring a Mathematical brain. Remember Pascal.

A good critic is the man who describes his adventures among masterpieces.

To die for an idea is to set a rather high price upon conjecture.