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

The improver of natural knowledge absolutely refuses to acknowledge authority as such.  

Control your expenses better than your competition. This is where you can always find the competitive advantage.

Every tree we plant today is a promise to tomorrow.

真相往往存在于边缘。

数字革命不仅是经济问题，更是文化和民主问题。