Habit is habit, and not to be flung out of the window by any man, but coaxed downstairs a step at a time.

In mathematics, you don't understand things. You just get used to them.

海洋是生命的摇篮，也是人类未来的希望，我们要像对待母亲一样呵护她。

Cognitive processes are rule-governed transformations of symbolic structures.

"The things we do for love are often the most irrational."