When you need to innovate, you need collaboration.

The limits of sense are not to be determined by the narrow bounds of our own capacities.

和平不是战争的缺席，而是建立在性格坚强的美德之上。

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.