保全你的身形，养护你的生命，不要思虑重重、汲汲营营。

Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.

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.

Writing is a way of exorcising demons and a process of self-discovery.