科学研究要解决实际问题，不能只停留在论文上。
People are always blaming their circumstances for what they are. I don't believe in circumstances. The people who get on in this world are the people who get up and look for the circumstances they want, and, if they can't find them, make them.
The success of any political system depends on its ability to generate legitimacy in the eyes of its citizens.
The dead are not lost. They are just out of sight.
