The deeper you go into mathematics, the more you realize how much remains unknown.

The best revenge is just moving on and getting over it.

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

译文：善于创始的人不一定完成得很好，有个好开头的人不一定有好结果。

Modern quarrying requires us to be geologists, ecologists, and community diplomats simultaneously.