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.

A writer is a mirror reflecting the world's complexities.

软件开发中最重要的一个方面是明确你要构建什么。

Investing in clean coal technologies isn't an expense—it's an investment in our future.

试图在不激发学生学习欲望的情况下进行教学的老师，就像在冷铁上敲打。