如果你没有失败，说明你不够努力。

我觉得布什总统根本没有为艾滋病做任何事。事实上，我都不能确定他会不会拼艾滋这个单词。

The only real freedom is the freedom to say no.

Where there is no property there is no injustice.

Innovation isn't just about technology; it's about reimagining how we interact with materials and the environment.

We are all searching for something, even if we don't know what it is.

真相很少纯粹，也绝不简单。