"The greatest tragedy is not the brutality of the bad people, but the silence of the good people."

No man really knows about other human beings. The best he can do is to suppose that they are like himself.

在追求真理的过程中，我们必须准备好放弃那些与实验相矛盾的最珍视的信念。

宇宙包含过去，现在与未来。

Leadership is about making tough decisions with vision and integrity.

真理是时间的女儿。

写作是使不可见变为可见的艺术。