The beauty of mathematics lies not only in its ability to describe the world but also in its power to reveal the hidden structures that govern it.

一个谜团的核心不是犯罪，而是涉及的人。

导师的职责是指导孩子的智能活动和孩子的心理。

I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock hem up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.

成功是一种心态。