"We are all in the gutter, but some of us are looking at the stars."

Life is like riding a bicycle. To keep your balance, you must keep moving.

The key to success is to keep growing in all areas of life - mental, emotional, spiritual, as well as physical.

爱是一种极其困难的领悟：除了自己之外还有其他真实存在。

追求知识是一段没有终点的旅程。

教育的最高任务是培养个人对人类的责任感。

科学成功的关键在于合作和分享知识。