Remember: The best deceivers do everything they can to cloak their roguish qualities. They cultivate an air of honesty in one area to disguise their dishonesty in others. Honesty is merely another decoy in their arsenal of weapons.

The deceived has the better of the deceiver.

Man has an invincible inclination to allow himself to be deceived and is, as it were, enchanted with happiness when the rhapsodist tells him epic fables as if they were true, or when the actor in the theater acts more royally than any real king. So long as it is able to deceive without injuring, that master of deception, the intellect, is free; it is released from its former slavery and celebrates its Saturnalia. It is never more luxuriant, richer, prouder, more clever and more daring.

People who believe that they are strong-willed and the masters of their destiny can only continue to believe this by becoming specialists in self-deception.

People who believe that they are strong-willed and the masters of their destiny can only continue to believe this by becoming specialists in self-deception. Their decisions are not really decisions at all — a real decision makes one humble, one knows that it is at the mercy of more things than can be named — but elaborate systems of evasion, of illusion, designed to make themselves and the world appear to be what they and the world are not.

Men who can succeed in deceiving no one else will succeed at last in deceiving themselves.

one of the most fascinating and effective kinds of lying is self-deception.

For the trouble with lying and deceiving is that their efficiency depends entirely upon a clear notion of the truth that the liar and deceiver wishes to hide. In this sense, truth, even if it does not prevail in public, possesses an ineradicable primacy over all falsehoods.

They say that it is the practiced liar who can deceive. But so often the practiced and chronic liar deceives only himself; it is the man who all his life has been selfconvicted of veracity whose lies find quickest credence.

The truest way to be deceived is to think oneself more knowing than others.

Oh how easy it is to deceive one who is confident!

Robert Trivers argues, for instance, that people who can believe their own lies turn out to be the best liars of all — and an ability to deceive rivals has obvious advantages in the state of nature.

The capacity for self-deception, rarely acknowledged or understood by those who offer us supernatural answers to our problems, is huge: as easy as it is to make a medium’s cold-reading statements ‘fit’ our own situation and come to believe that he must have some paranormal insight, it is hardly any more difficult for a would-be psychic with an average ego, upon hearing frequently positive feedback, to believe over time that he must be blessed with a special gift. It’s harder to think you’re doing it for real when you’re tossing tambourines in the dark or have ready-made ectoplasm stuffed into your mouth or bottom.

As the poet laureate of all confidence tricksters and treasure-seekers puts it, we were “given to strong delusion, wholly believing a lie.”