29."It isn't where you came from, it's where you're going that counts." ~~~()你从哪里来并不重要，重要的是你将要去哪里。

30.Yesterday is an invalid cheque.Tomorrow is a promissory note and today is the only cash you have. ~~~昨天是一张作废的支票，明天是一张期票，而今天则是你唯一拥有的现金。