To enjoy freedom we have to control ourselves.
历史学家的首要职责是如实讲述他所见的真相,无论这会取悦还是触怒何人。
生命太短暂,不要在早晨醒来时带着遗憾。
If you're not doing anything wrong, you have nothing to hide.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
"A story is a letter that the author writes to himself, to tell himself things that he would be unable to discover otherwise."