The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

Natural selection is the only known natural process that can build functional complexity.

互联网不仅仅是一种技术，它是一种社会现象。

数学中最重要的是理解概念，而不仅仅是记忆公式。

质量在价格被遗忘后仍会被长久记住。