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Passionate hatred can give meaning and purpose to an empty life.

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow."

學習數學的唯一方法就是做數學。

釋義：小的善行雖然不能帶來巨大的好處，但是不能不做；小的惡行雖然不能惹來災禍，但是不能不改。

來時驚動很大，走時沒有任何聲響。

領導力就是激勵人們去做他們從未想過自己能做的事。

科學是關于理解我們周圍的世界，這種理解可以帶來令人難以置信的進步。