The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.

 智者创造机会胜于等待机会。

经济景观是一个由不同等级的中心地组成的系统，每个中心地为特定区域服务。

真正的领导力意味着为了更美好的明天而做出艰难的决定。

I'm not going to change who I am or what I do because of what people say.

数学的美在于它让我们无需离开椅子就能探索宇宙。