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Mathematics is not a spectator sport.
Success is not final, failure is not fatal.
The only person you should try to be better than is the person you were yesterday.
释义:知足常乐的人会感到快乐,没有欲望没有追求的人会感到轻松。
我们讲给自己的故事和别人讲我们的故事同样重要。