Ben, the ethics of sex is a thorny problem. Each of us is forced to grope for a solution he can live with — in the face of a preposterous, unworkable, and evil code of so-called ‘morals.’ Most of us know the code is wrong; almost everybody breaks it. But we pay Danegeld by feeling guilty and giving lip service. Willy-nilly, the code rides us, dead and stinking, an albatross around the neck.

Robert A. Heinlein (1907-1988) American writer
Stranger in a Strange Land [Jubal] (1961)
    (Source)

In the 1960 "uncut" edition, the passage reads as: "Ben, the ethics of sex is a thorny problem because each of us has to find a solution pragmatically compatible with a preposterous, utterly unworkable, and evil public code of so-called "morals." Most of us know, or suspect, that the public code is wrong, and we break it. Nevertheless we pay Danegeld by giving it lip service in public and feeling guilty about breaking it in private. Willy-nilly, that code rides us, dead and stinking, an albatross around the neck."