The fact that someone says something doesn't mean it's true. Doesn't mean they're lying, but it doesn't mean it's true.

We are, each of us, a multitude. Within us is a little universe.

Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.

It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used in correct context - no human being has been reported to have learned dolphinese.

If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power.

Virtually every major technological advance in the history of the human species - back to the invention of stone tools and the domestication of fire - has been ethically ambiguous.

We've tended in our cosmologies to make things familiar. Despite all our best efforts, we've not been very inventive. In the West, Heaven is placid and fluffy, and Hell is like the inside of a volcano. In many stories, both realms are governed by dominance hierarchies headed by gods or devils. Monotheists talked about the king of kings. In every culture we imagined something like our own political system running the Universe. Few found the similarity suspicious.