No man who says ‘I’m as good as you’ believes it. He would not say it if he did. The St. Bernard never says it to the toy dog, nor the scholar to the dunce, nor the employable to the bum, nor the pretty woman to the plain. The claim to equality, outside the strictly political field, is made only by those who feel themselves to be in some way inferior. What it expresses is precisely the itching, smarting, writhing awareness of an inferiority which the patient refuses to accept.
And therefore resents. Yes, and therefore resents every kind of superiority in others; denigrates it; wishes its annihilation. Presently he suspects every mere difference of being a claim to superiority. No one must be different from himself in voice, clothes, manners, recreations, choice of food: “Here is someone who speaks English rather more clearly and euphoniously than I — it must be a vile, upstage, lah-di-dah affectation. Here’s a fellow who says he doesn’t like hot dogs — thinks himself too good for them, no doubt. Here’s a man who hasn’t turned on the jukebox — he’s one of those goddamn highbrows and is doing it to show off. If they were honest-to-Godall-right Joes they’d be like me. They’ve no business to be different.”
– C. S. Lewis, “Screwtape Proposes a Toast” (1959)