我喜欢竞争。我喜欢比赛。我喜欢挑战世界上最优秀的球员。

释义：小人做事只要有利就去做，无原则无底线；君子则坚守原则，不做不合道德正义之事，行事不刻意追求结果。

The minute you start talking about what you're going to do if you lose, you have lost.

Insofar as a thing is in harmony with our nature， it is necessarily good.

We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.

The most important skill in mathematics is the ability to think clearly.

应对一个不自由的世界的唯一方法，就是变得如此绝对自由，以至于你的存在本身就是一种反叛。