Success in life means doing that thing than which nothing else is more dear to you.

科学是使复杂变得可理解的艺术。

"In tennis, like in life, you have to keep moving forward—one point at a time."

真实的人互相认可。

一个观念的效用决定了它在精神生活中的地位。

人类注定是自由的。

The only thing that could make us what we are would be a perception of something like us.