理论的任务是描述观察之间的联系。

"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment."

观察他交往的是什么人，就能知道他的品行如何。

The biggest challenge isn't the science - it's changing people's perceptions.

我们行业的创新并不总是意味着高科技，有时是把基础工作做得更好。