在没有生命力的帮助下合成尿素是一个极其重要的事实。

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

Success is not final, failure is not fatal.

你不能双手都戴着接球手套度过一生。你需要能够回馈些什么。

生活的全部就是放手，但最痛苦的是没有花一点时间说再见。

每一吨矿石都在讲述一个故事；我们的工作是明智地解读它。