The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.

I earnestly wish to point out in what true dignity and human happiness consists.

"A writer's duty is to tell the truth, even when it is uncomfortable or inconvenient."

The only thing more dangerous than a man with nothing to lose is a man with everything to gain.

数学证明的美在于它的优雅以及它以清晰简洁的方式揭示潜在真理的方式。