We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes.

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.

天下万事中，没有什么比道义更可贵的了。

诗歌不解释，它揭示。

Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.

Every town has its ghosts, and every ghost has its story.

黑暗修复了光明修不了的东西。

Magic, like any other power, is neither good nor evil in itself. It is the purpose to which it is put that determines its nature.