埃尔德什差异问题让我着迷,因为它陈述起来如此简单,但含义却如此深刻。
过去总是紧张的,未来是完美的。
The only phrase I've ever disliked is, 'Why, we've always done it that way.' I always tell young people, 'Go ahead and do it. You can always apologize later.'