The ultimate aim of the modern movement in biology is in fact to explain all biology in terms of physics and chemistry.

I think of other ages that floated upon the stream of life and love and death and are forgotten,and I feel the freedom of passing away.

Believe you can and you're halfway there.

你永远不知道你有多坚强，直到坚强成为你唯一的选择。

Leadership is about making tough decisions today that will define tomorrow's opportunities.

Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty.