Knowledge has value only insofar as it contributes to the liberation of humanity.

位卑者不怕攀登高山，贫困者勿需点缀虚幻的光环，朝圣者心中自有上帝，引导一路向前。

I'm in control of my life.

The artist's duty is to be a witness to his time.

数学中真正的挑战不是解决问题，而是提出正确的问题。