The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

"A book is a dream that you hold in your hand."

在物理学的世界里，我们经常发现最简单的问题最难回答。

Luck has nothing to do with it, because I have spent many, many hours, countless hours, on the court working for my one moment in time.

挑战不在于代表非洲，而在于呈现非洲的复杂性。

Every tyrant who has lived has believed in freedom--for himself.

Good architecture creates possibilities, not limitations.

外交的目标是建立稳定的国际关系，以促进全球和平、繁荣和可持续发展。