excerpt from Foucaults Pendulum...
"There are four kinds of people in this world: cretins, fools, morons, and lunatics...If you take a good look, everybody fits into one of these categories. Each of us is sometimes a cretin, a fool, a moron, or a lunatic. A normal person is just a reasonable mix of these components, these four ideal types...A genius uses one component in a dazzling way, fueling it with the others...Look, don't take me too literally. I'm not trying to put the universe in order. I 'm just saying what a lunatic is from the point of view of a publishing house. Mine is an ad-hoc definition...Now then: cretins. Cretins don't even talk; they sort of slobber and stumble. You know, the guy who presses the ice cream cone against his forehead, or enters a revolving door the wrong way. Being a fool is more complicated. It's a form of social behavior. A fool is one who always talks outside his glass...He wants to talk about what's in the glass, but somehow or other he misses. He's the guy who puts his foot in his mouth. For example, he says how's your lovely wife to someone whose wife has just left him...Fools are in great demand, especially on social occasions. They embarrass everyone but provide material for conversation. In their positive form, they become diplomats. Talking outside the glass when someone else blunders helps to change the subject. But fools don't interest us, either. They're never creative, their talent is all second-hand, so they don't submit manuscripts to publishers. Fools don't claim that cats bark, but they talk about cats when everyone else is talking about dogs. They offend all the rules of conversation, and when they really offend, they're magnificent. It's a dying breed, the embodiment of all the bourgeois virtues...Well, a fool is a Joachim Murat reviewing his officers. He sees one from Martinique covered with medals. 'Vous etes negre?' Murat asks. 'Oui, mon general!' the man answers. And Murat says: 'Bravo, bravo, continuez!' And so on. You follow me?...Morons never do the wrong thing. They get their reasoning wrong. Like the fellow who says all dogs are pets and all dogs bark, and cats are pets, too, and therefore cats bark. Or that all Athenians are mortal, and all the citizens of Piraeus are mortal, so all the citizens of Piraeus are Athenians...Morons will occasionally say something that's right, but they say it for the wrong reason...Morons are tricky. You can spot the fool right away (not to mention the cretin), but the moron reasons almost the way you do; the gap is infinitesimal. A moron is a master of paralogism. For an editor, it's bad news. It can take him an eternity to identify a moron."