Health is not a privilege of the rich, but a vulnerability of the poor.

译文：人生百年，无论大小事，兴盛与衰败，都如同一场梦般转瞬即逝。

I want my fans to know how much I appreciate them.

The mind is a system of organs of computation, designed by natural selection to solve the kinds of problems our ancestors faced in their foraging way of life.

"Man, unlike any other thing organic or inorganic in the universe, grows beyond his work, walks up the stairs of his concepts, emerges ahead of his accomplishments."

世界是一本书，不旅行的人只读了一页。