人类的选择在于自由和幸福之间，而对于大多数人来说，幸福更好。

You are never too old to set another goal or to dream a new dream.

快乐的最好方法是活出真实的自己。

我倾向于认为，你越长时间看一件事，它就越抽象，而且讽刺的是，它就越真实。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

The only limits in life are the ones you make.

I don't listen to what people say. I just go out there and do my best.

云计算不是一种技术，而是一种服务模式。