Motivation is the art of getting people to do what you want them to do because they want to do it.
永远不要停止提问，因为那是发现的开始。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
迟到的正义等于没有正义。
For the eyes of the world now look into space, to the moon and to the planets beyond, and we have vowed that we shall not see it governed by a hostile flag of conquest, but by a banner of freedom and peace.