拓扑学是对图形在任何变形下保持不变的性质的研究。

作家必须是所有正统观念的叛徒。

我们生来就带着正义的观念。

When you do something best in life, you don’t really want to give that up – and for me it’s tennis.

"I don't believe in luck. I believe in hard work."

The food industry has a responsibility to future generations—what we do today shapes their tomorrow.

我是一个喜欢稀有的人。