一个试图教学而不激发学生学习欲望的教师，就像在冷铁上敲打。

我不必完美。我只需要尽我所能。

A miner's safety is the first line in any production report.

People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed; never throw out anyone.　　

商业中最危险的一句话是"我们一直都是这样做的"。

危机是一件不能浪费的事情。