The most effective way to destroy people is to deny and obliterate their own understanding of their history.

Oh, I’m so glad you’ve come. There are hundred things I want not to say to you.

The true way is along a rope that is not stretched at any great height but just above the ground. It seems more designed to make people stumble than to be walked upon.

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。

一本书是由一个词开始的旅程。

成功是个糟糕的老师。它让聪明人认为他们不能失败。

我们只是试图解决一个需要解决的问题。

科学通过不断质疑和完善我们的理解而进步。