No man's knowledge here can go beyond his experience.

A true friend is the one who holds your hand and touches your heart.

The most damaging phrase in the language is: 'We've always done it this way.'

爱是宇宙中最强大的力量。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

我们这年代的人读书太多而不聪明，想得太多而不美丽。