Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

我们每个人，都需要一个能给自己道别之吻的人。

A good book should make you laugh, cry, and think.

The true value of a forest cannot be measured in board feet alone; its worth is in the life it sustains.

你无法独自建立伟大的事业，找到合适的团队。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

Do not try to change the outer world; change your inner world, and the outer world will adjust itself.