Once you get to earth orbit, you're halfway to anywhere in the solar system.

There are perhaps 5% of the population that simply can't think. There are another 5% who can, and do. The remaining 90% can think, but don't

Our behavior is different. How often have you seen a headline like this?--TWO DIE ATTEMPTING RESCUE OF DROWNING CHILD. If a man gets lost in the mountains, hundreds will search and often two or three searchers are killed. But the next time somebody gets lost just as many volunteers turn out. Poor arithmetic, but very human. It runs through all our folklore, all human religions, all our literature--a racial conviction that when one human needs rescue, others should not count the price.

I don't see how an article of clothing can be indecent. A person, yes.

The best thing about space travel is that it made it possible to go elsewhere.

Ability is a wonderful thing, but its value is greatly enhanced by dependability. Ability implies repeatability and accountability.

Abstract knowledge is always useful, sooner or later.