真相就像一头狮子；你不需要为它辩护。放开它；它会自己辩护。

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

I prefer the destruction of the whole world to the scratching of my finger.

自然界和道德世界是人类理性关注的双重对象。

I’m not afraid of falling, I’m afraid of the ground.