The art of governing mankind by deceiving them.

When we undertake to deceive others intentionally, we communicate messages meant to mislead them, meant to make them believe what we ourselves do not believe. We can do so through gesture, through disguise, by means of action or inaction, even through silence.

Deception is a state of mind and the mind of the State.

Ambition prompted many to become deceitful; to keep one thing concealed in the breast, and another ready on the tongue; to estimate friendships and enmities, not by their worth, but according to interest; and to carry rather a specious countenance than an honest heart.

The ancients used to say: mundus vult decipi, ergo decipiatur — the world wants to be deceived, so let it be deceived.

The phrase, the world wants to be deceived, has become truer than had ever been intended. People are not only, as the saying goes, falling for the swindle; if it guarantees them even the most fleeting gratification they desire a deception which is nonetheless transparent to them. They force their eyes shut and voice approval, in a kind of self-loathing, for what is meted out to them, knowing fully the purpose for which it is manufactured. Without admitting it they sense that their lives would be completely intolerable as soon as they no longer clung to satisfactions which are none at all.

Ours is a problem in which deception has become organized and strong; where truth is poisoned at its source; one in which the skill of the shrewdest brains is devoted to misleading a bewildered people.

Deception, in turn , suggests morality: the morality of deceiving people into thinking something is so when it is not.[...] The moral principle is this: whoever attempts to tame a part of a wicked problem, but not the whole, is morally wrong.

Gullible citizens are a demagogue’s dream.

We may employ artifice to deceive a rival, anything against our enemies.

Deception is the knowledge of kings.

Mundus vult decipi: the world wants to be deceived.

The opportunity to decieve others is ever present and often tempting, and each instance of deception casts us onto some of the steepest ethical terrain we ever cross.

Men of factious tempers, of local prejudices, or of sinister designs, may, by intrigue, by corruption, or by other means, first obtain the suffrages, and then betray the interests, of the people.