没有艺术；没有文学；没有社会；最糟糕的是，持续的恐惧和暴死的危险；人的生活孤独、贫困、卑污、残忍而短寿。
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
The only way to learn mathematics is to do mathematics.
Institutional critique must come from within institutions.
历史不会长期将自由的维护托付给软弱或胆怯的人。
If you want people to do something, make it easy.
