诗歌必须始终具有道德目的；它应该在愉悦的同时教导。

"The best stories are the ones that surprise the writer as much as the reader."

——1963年6月25日在西德市政厅柏林墙前的演说

When [competitors are] in the shower in the morning, they're thinking about how they're going to get ahead of one of their top competitors. Here in the shower, we're thinking about how we are going to invent something on behalf of a customer.

Urban design is not just about buildings, but about the spaces between them.