Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

每个故事都有一个结局，但在生活中，每个结局都只是一个新的开始。

每一次爆炸都是与未知的对话。

There are two ways to extend a business. Take inventory of what you are good at and extend out from your skills. Or determine what your customers need and work backwards, even if it requires learning new skills.

二战前生活很简单。之后，我们有了系统。

沉默是伟大事物形成的元素。