说出口的，就是结束且完成的。

最可持续的产品是能持续一生的产品。

Quality should never be compromised, because reputation is built over a lifetime but lost in a moment.

You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.

教育是点燃火焰，而不是填满容器。

向一个人展示他在错误中是一回事，让他掌握真理是另一回事。