There are things which cannot be taught in ten easy lessons, nor popularized for the masses; they take years of skull sweat.

Mighty little force is needed to control a man whose mind has been hoodwinked; contrariwise, no amount of force can control a free man, a man whose mind is free. No, not the rack, not fission bombs, not anything - you can't conquer a free man; the most you can do is kill him.

Long human words (the longer the better) were easy, unmistakable, and rarely changed their meanings . . . but short words were slippery, unpredictable, changing their meanings without any pattern.

You live and learn. Or you don't live long.

One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others.

Remember this: once the human race is established on more than one planet and especially, in more than one solar system, there is no way now imaginable to kill off the human race.

Come Judgment Day, we may find that Mumbo Jumbo the God of the Congo was the Big Boss all along.