外交是一种手段，而不是目的。

当天赋不努力时，勤奋会击败天赋。

当现有约束被改变以允许更有效的经济活动组织时，经济增长就会发生。

Everything is hard before it is easy. The day before something is a breakthrough， it’s a stupid idea.

The most important thing is that you have a North Star. You have to know where you're going.

劳动是一切财富和一切文化的源泉。

The great thing is to be in love with life.

Mathematics is a universal language that transcends cultural and linguistic barriers.

我们爱尔兰人太诗意以至不能做诗人，我们的国家里充满才华横溢的失败者，可我们是自希腊人以来最伟大的说空话之人。