人类心智是一套信息处理机制，这些机制由自然选择设计来解决我们狩猎采集祖先面临的适应性问题。

译文：我本来是一介平民，在南阳务农亲耕，只想在乱世中苟且保全性命，不谋求在诸侯之中闻名显达。

The only way to get to the top is to climb the mountain, not to wait for the elevator.

I don't run out of material. I run out of time.

The best time to plant a tree was twenty years ago. The second best time is now.

Sustainable development requires not only vision but also concrete actions.

真正明智的教师不会邀请你进入他智慧的房子，而是引导你到自己心灵的门槛。