"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

A good mathematician is always ready to generalize.

真正的力量不在于肌肉，而在于心灵。

The more you give, the more you receive

我们开采的最宝贵资源不是煤炭，而是我们员工的才能和奉献精神。