To be a good mathematician, you need to have both intuition and rigor.

法律规则不是命令，而是行为标准。

Inner peace is the greatest wealth of life.

阅读使人充实，谈论使人机敏，写作使人精确。

We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in.