可持续发展不是选择，而是责任。

All violence consists in some people forcing others, under threat of suffering or death, to do what they do not want to do.

在自然状态下，利益是权利的尺度。

Dream big and work hard.

一流智力的检验标准是同时在大脑中持有两种相反的想法，并且仍然保持功能的能力。