We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.

The rule of recognition is the ultimate rule in a legal system, which identifies the criteria for valid law.

永远不要停止学习，因为世界永远不会停止变化。

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

To create something that's never been seen before is the greatest challenge.

我们都是生命之书中的章节。