每个人都有权拥有自己的观点，但没有人有权在事实上出错。

The world is always right. In its judgments, it is always right. Because it is the world.

You are not the opinion of somebody who doesn't know you.

成绩差距主要是知识差距。

I'm not going to let anyone bring me down.

形容世事变化无常，难以预测。