数学家的直觉和严谨的证明同样重要。

没有什么比一个显而易见的事实更具欺骗性。

抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。

好的科学需要耐心和坚持。

The only real failure in life is not to be true to the best one knows.

Sustainable fishing isn't an option - it's the only way forward if we want our industry to survive.

Every program has (at least) two purposes: the one for which it was written, and another for which it wasn't.

经过不断改善自己的动作，幼儿从独立活动中获得喜悦。