Because time moves more slowly in Kid World ... it goes on for decades ... It is adult life that is over in a twinkling.

He had the sort of face that makes you realize God does have a sense of humor.

In three minutes, 98 percent of all the matter there is or will ever be has been produced. We have a universe

Very little of what America does is actually bad, and I don't think it ever does anything anywhere that is intentionally bad. I mean, sometimes we make mistakes and bad judgments and kind of back the wrong regimes and things, but by and large what America does is really good.

I don't want to go and start trying to make jokes in places like India, Tanzania or Iraq. Afghanistan is not a funny place.

18th century scientists, the French in particular, seldom did things simply if an absurdly demanding alternative was available.

You may not feel outstandingly robust, but if you are an average-sized adult you will contain within your modest frame no less than 7 X 10^18 joules of potential energy—enough to explode with the force of thirty very large hydrogen bombs, assuming you knew how to liberate it and really wished to make a point.