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.
统计学中最重要的不是数字，而是产生这些数字的方法及其背后的意义。
Every technological breakthrough comes from the exploration and persistence of the unknown.
幸福取决于我们自己。
Winning is important, but what really matters is the effort you put in to achieve it.