I don't think you can ever do your best. Doing your best is a process of trying to do your best.
世界是一个舞台,但剧本选角很糟糕。
每个圣人都有过去,每个罪人都有未来。
数学直觉就像肌肉一样 - 通过锻炼会变得更强大。
The cost of inaction is far greater than the cost of action.