能量守恒定律不仅是一条经验法则，更是思维的必然要求。

Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government."

The evolution of database technology is a journey, not a destination. We must continue to innovate and adapt.

It is one thing to show a man that he is in an error, and another to put him in possession of truth.

He tore my heart， but you broke my life.

如果你有梦想，就要守护它。