我不必完美,我只需要做我自己。
I don't have to be perfect, I just have to be me.
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step closer to understanding the fabric of reality.
贫贱是苦难的境界,能很好地居于其境者就苦中有乐;富贵是快乐的境地,不能很好地对待富贵的人便会乐极生悲。