【讲解】：有了过错而不改正，这才真叫过错呢。

我不是商人，我就是生意本身。

【译文】孔子说：“经常学习，不也喜悦吗？远方来了朋友，不也快乐吗？得不到理解而不怨恨，不也是君子吗？”

我这一代人最伟大的发现是人类可以通过改变态度来改变生活。

The challenge is to ensure that the Internet remains a force for good, a tool for empowerment, and a platform for innovation.

I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.