The art of teaching is the art of assisting discovery.
教学的艺术是帮助发现的艺术。
The beauty of mathematics lies in its ability to describe the universe in a language that is both precise and universal.
The past is a foreign country, but we are all its citizens.
我不是那种会让对现在的热爱减少的人。
There is no greater sorrow than to recall happiness in times of misery.