In a world filled with hate, we must still dare to hope. In a world filled with anger, we must still dare to comfort. In a world filled with despair, we must still dare to dream. In a world filled with distrust, we must still dare to believe.

The human mind is a set of information-processing machines that were designed by natural selection to solve adaptive problems faced by our hunter-gatherer ancestors.

如果汽车行业像半导体行业一样快速发展，劳斯莱斯的油耗将达到每加仑50万英里，而且扔掉它比停车更便宜。

发散级数是魔鬼的发明，基于它们的任何证明都是一种耻辱。