幸福不是一直得到你想要的，而是爱你所拥有的并为此感恩。

I'm not afraid to speak my mind because I know that's who I am.

Mathematics is not a spectator sport. You have to get involved.

Every piece of plastic we produce should have a clear path to reuse or recycling.

所有的枪都上了膛。

【释义】凯根打破童年决定论：快乐童年未必护航成年，而经历过黑暗的孩子反而可能锻造韧性。

真相并不总是美丽的，但追求真相总是高尚的。

If you're not interested in food and people， you're probably not interested in what I do.

睁开眼睛，在它们永远闭上之前，看看你能看到什么。