A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.

永远不要让自尊心妨碍你做正确的事。

生命是一个黎明，死亡是另一个黎明。

你不能戴着丝绒手套搞革命。

控制愤怒的情绪如同摧毁山峦般坚毅，又如救火一样迅疾；压制欲望如同填塞山谷一样有毅力，又如防洪一样果断。