The quality of an organization's mission determines the quality of its purpose.

What can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.

我认为人们相信天堂是因为他们不喜欢死亡的想法，因为他们想继续活着，他们不喜欢别人会搬进他们的房子并把他们的东西扔进垃圾堆的想法。

暴力的减少可能是我们物种历史上最重要却最不被重视的发展。