All things are possible until they are proved impossible and even the impossible may only be so, as of now.

The art of education must be to bring the child to the point where he can educate himself.

Discipline is the bridge between goals and accomplishment.

If you think about something at three o'clock in the morning and then again at noon the next day, you get different answers...

最好的投资是对人及其潜力的投资。

计算理论为理解什么可以计算、什么不能计算提供了基础。