世界上充满了自童年起就再未以开放心灵面对开放门户的人。

The individual investor should act consistently as an investor and not as a speculator.

The chemical industry has a responsibility to lead the way in reducing environmental impact.

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.

我不会放弃，我会升级。