质数就是当你把所有模式都剔除后剩下的东西。我觉得质数就像生活,它们非常有逻辑性,但你永远无法找出规律,即使你花上一辈子时间去思考。
The less secure a man is, the more likely he is to have extreme prejudice.
街道因比夜晚更黑暗的东西而黑暗。
The best way to guarantee a loss is to quit.