一个思想若称不上危险，那么它就不值得称作思想。

The primary function of law is to provide a framework for social order.

The ultimate goal of machine learning is to make machines that can learn from experience and improve their performance over time.

历史不仅仅是过去的记录，也是反映现在的镜子。

真相并不总是美丽的，但对真相的追求是。