At the close of our studies， we knew all the past of physics， but nothing of the present and the future.
We need to be obsessed with our customers' unmet, unarticulated needs.
当人们做不到一些事情的时候，他们就会对你说你也同样不能。
与我们所承担的责任相比，石料的重量微不足道。
Sometimes you have to lose yourself before you can find anything.
International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.