The greatest thing to be achieved in advertising, in my opinion, is believability, and nothing is more believable than the product itself.

The greatest battles are not fought with weapons, but with ideas.

Design without function is just art.

A mathematician is a device for turning coffee into theorems.

我是一个战士，我不会放弃。

阅读是不动而旅行；写作是旅行而不动。