无论代价如何，安全必须始终放在第一位。

"The truth is, we all have our own prisons, and the key is always within reach."

我喜欢说我不是政治家，我是一个深深关心我的国家的公民。

I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

"Writing is a way of making sense of the world, of finding your place in it."

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。