A real decision is measured by the fact that you’ve taken a new action. If there’s no action, you haven’t truly decided.

The more you speak, the more likely you are to say something foolish.

天下的一切事物不可以没有标准，做人要有做人的标准，即原则;做事要有做事的标准，即规则;治国要有治国的标准，即法则。不遵循一定的标准而能成事者，自古以来是没有的。

Hope for the best, expect the worst.

The only way to tell the truth is to speak without fear.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.