Anything free is worth what you pay for it.

Oh, you have to charge 'em, Jubal. The marks won't pay attention if it's free.

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.

The most ridiculous concept ever perpetrated by Homo Sapiens is that the Lord God of Creation, Shaper and Ruler of the Universes, wants the saccharine adoration of his creations, that he can be persuaded by their prayers, and becomes petulant if he does not receive this flattery. Yet this ridiculous notion, without one real shred of evidence to bolster it, has gone on to found one of the oldest, largest and least productive industries in history.

If a grasshopper tries to fight a lawnmower, one may admire his courage but not his judgement.

One man's 'magic' is another man's engineering. 'Supernatural' is a null word.

Belief gets in the way of learning.