The only limit to our realization of tomorrow will be our doubts of today.

The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.

You are not the opinion of somebody who doesn’t know you or care about you.

写作是一种不被中断的说话方式。

保护工作的领导力不在于控制，而在于管理和长远眼光。

创作艺术的行为是一种希望的行为。