在别人面前受称赞，不如背后没有人说坏话；与人相处能使人获得短暂快乐，不如与人长久相处而不使对方厌恶。
The art of algorithm design is not just in solving problems, but in discovering new ways to think about them.
It’s a lie to think you’re not good enough. It’s a lie to think you’re not worth anything.
The study of mathematics is the indispensable basis for all intellectual and spiritual progress.