Efficiency without ethics is just speed in the wrong direction.

数学中的每一个问题都是学习新东西的机会。

大型工业企业的历史就是现代资本主义崛起的历史。

To imagine is everything, to know is nothing at all.

To write is to bear witness to the world and to oneself.

True leadership is about serving others, not yourself.

I think the most important thing is to be honest with yourself and with others.