Hard To Shake Off Any Taboos (Heinlein)

I don't suppose any but scholars read the Old Testament anymore, but the culture I was brought up in was soaked in its attitudes–'Bible Belt,' you've heard me call it that. Girls, it is hard to shake off any taboos a child is indoctrinated with in his earliest years. Even if he learns later that they are nonsense.

From "Time Enough for Love" by Robert A Heinlein.