世人所知道的我，并不是实在的我。

I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you.

Our miners are the hardest working people in America.

程序测试可以用来显示错误的存在，但永远不能显示它们的缺失！

音乐是连接我们所有人的通用语言。

自然实验是理解现实世界中因果关系的强大工具。

文学不是一场道德选美比赛。它的力量来自声音的权威，而非灵魂的纯洁。