生活对那些思考的人来说是喜剧，对那些感受的人来说是悲剧。

物理学和数学之间的界限并不像我们想象的那么清晰。

Time is the only true enemy we have, and the only one we can never defeat.

If you can't understand why someone is doing something, look at the consequences of their actions, whatever they might be, and then infer the motivations from their consequences.