The facts, gentlemen, and nothing but the facts, for careful eyes are narrowly watching.

Robots will neither be common nor very good in 2014, but they will be in existence.

A good question is, of course, the key by which infinite answers can be educed.

If I am right, then (religious fundamentalists) will not go to Heaven, because there is no Heaven. If they are right, then they will not go to Heaven, because they are hypocrites.

What do you call that nice, shiny white metal they use to make sidings and airplanes out of? Aluminum, right? Aluminum, pronounced 'uh-LOO-mih-num', right? Anybody knows that! But do you know how the British spell it? 'Aluminium', pronounced 'Al-yoo-MIH-nee-um'. Ever hear anything so ridiculous? The French and Germans spell it 'aluminium', too, but they're foreigners who don't speak Earth-standard. You'd think the British, however, using our language, would be more careful

Democracy cannot survive overpopulation. Human dignity cannot survive it. Convenience and decency cannot survive it. As you put more and more people into the world, the value of life not only declines, but it disappears. It doesn't matter if someone dies.

To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge.