你可以锁上你的图书馆；但对我的思想自由，你无法设置任何门闩、锁或插销。

自律和坚持是成功的关键。

在数学中，最简单的问题往往导致最深刻的发现。

The best way to find out if you can trust somebody is to trust them.

艺术应该是危险的——它应该让你有所感受。

I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish.

最优秀的矿业领导者是那些在别人只看到风险时能看到机遇的人。

我的人生没有剧本，一切都是即兴。