The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

奈奎斯特准则提供了一种图形方法来确定闭环系统的稳定性。

The only thing I can do is write. Everything else bores me.

The most effective leaders are those who empower others to lead.

I'm not a person who likes to be regular.

人格在你20多岁时比在人生的任何其他时期都更容易改变。