安全不是产品，而是一种能力。

近似的艺术就是工程的艺术。

大地赐予我们宝藏，但我们的责任是回馈多于索取。

In one of the stars I shall be living。 In one of them I shall be laughing。 And so it will be as if all the stars were laughing， when you look at the sky at night… You – only you – will have stars that can laugh.

一个组织的质量永远不能超过组成它的头脑的质量。