An extract from a letter sent by Ronald Reagan to his son Michael, on the eve of Michael's marriage in 1971:
Any man can find a twerp here and there who will go along with cheating, and it doesn't take all that much manhood. It does take quite a man to remain attractive and to be loved by a woman who has heard him snore, seen him unshaven, tended him while he was sick and washed his dirty underwear. Do that and keep her still feeling a warm glow and you will know some very beautiful music. If you truly love a girl, you shouldn't ever want her to feel, when she sees you greet a secretary or a girl you both know, that humiliation of wondering if she was someone who caused you to be late coming home, nor should you want any other woman to be able to meet your wife and know she was smiling behind her eyes as she looked at her, the woman you love, remembering this was the woman you rejected even momentarily for her favors.