When we strive to become better than we are, everything around us becomes better, too.

你有敌人？很好。这说明在你的生命中的某个时刻，你曾经呐喊过。

成功不仅在于你取得了什么，还在于你如何取得它。

There are only two tragedies in life: one is not getting what one wants and the other is getting it.

The major credit I think Jim and I deserve... is for selecting the right problem and sticking to it.

不要害怕犯错，害怕的是不学习。