Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
I think it's important to be yourself and not try to be someone else.
The longer I live the more I see that I am never wrong about anything, and that all the pains I have so humbly taken to verify my notions have only wasted my time.
不必太纠结于当下,也不必太忧虑未来,当你经历过一些事情的时候,眼前的风景已经和从前不一样了。