每一个数学问题都是通向新理解世界的窗口。

Be yourself and don't care what others think.

做数学就是同时参与创造和发现的行为。

We are constantly refining our models to improve performance.

And let's be clear: It's not enough just to limit ads for foods that aren't healthy. It's also going to be critical to increase marketing for foods that are healthy.

只有在梦想中，人才能真正自由。从来如此也将永远如此。

我对人际关系的复杂性着迷。

While statistics say that 95 percent of all young men who enter business fail, this should not discourage any one. Go out with the spirit “sink or swim,”and a person will not sink.