除非把爱国主义从人类中剔除，否则世界永远不会安宁。

There are other reasons --There are other reasons why it's perhaps harder now to feel calm than ever before. One of these, and it's paradoxical, because it's linked to something that's rather nice, is the hope we all have for our careers. Never before have expectations been so high about what human beings can achieve with their life span.

每一个挑战都是伪装的机遇。

追求真理是人类最高尚的事业。