True progress happens when we stop defending the status quo and start challenging it.

Success is stumbling from failure to failure with no loss of enthusiasm.

Foreign policy should not be confused with missionary work.

The glow of one warm thought is to me worth more than money.

大自然是一本书，每一页都是一个新的篇章，每一章都是一个新的故事。

译文：在激流中屹立的柱石，力挽狂澜，具有天才，建立伟大的功业，把百姓从苦难中拯救出来，使国家的命运如同磐石般稳固，不是大英雄不能担当这样的重任。

"I'm fascinated by how things move through the world, both physically and conceptually."