一个国家制度的品质是其成功的最重要决定因素。
The quality of a country's institutions is the most important determinant of its success.
If you don't keep creating, you will disappear.
All things are possible until they are proved impossible – and even the impossible may only be so, as of now.
当我看着这个世界时，我是悲观的，但当我看着人们时，我是乐观的。
"There are two occasions when the sacred beauty of Creation becomes dazzlingly apparent, and they occur together. One is when we feel our mortal insufficiency to the world, and the other is when we feel the world's mortal insufficiency to us."