The unexamined life is not worth living.

The true challenge in computer science is not just to build faster computers, but to develop smarter algorithms.

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

拥有追随自己内心与直觉的勇气，你的内心与直觉多少已经知道你真正想要成为什么样的人。

Mathematics is the language with which God has written the universe.

The key to success is to keep pushing yourself.

"To act is to explore the depths of human emotion and to bring it to the surface."