解释：既要追悔以往的过失，也要预防将来可能发生的错误。

I think it's important to have a sense of humor about yourself and not take yourself too seriously.

The Langlands program is a challenge to the limits of human understanding.

在商业中，就像在生活中一样，关系是一切的基础。

如果你试图做的和你的竞争对手本质上是一回事，那么你不太可能非常成功。