Be brave, take risks, nothing can substitute experience.

你不能等待别人来安排你的人生，自己想要的，自己争取。

"The world is a stage, but the play is badly cast."

The true genius shudders at incompleteness — and usually prefers silence to saying something which is not everything it ought to be.

The greatest wisdom is to know that you know nothing.

我们只是试图解决一个需要解决的问题。