Confidence comes from within. No one can give it to you.

"Words have power, but silence can be even more powerful."

做间谍就是生活在一个充满怀疑和猜疑的世界里。

Innovation in plastics isn't optional—it's our responsibility to the planet.

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

The historian’s task is to bring the dead to life.