A woman one loves rarely suffices for all our needs, so we deceive her with another whom we do not love.
— Marcel Proust

You know that the Tasmanians, who never committed adultery, are now extinct.
W. Somerset Maugham infidel quote

No lover, if he be of good faith, and sincere, will deny he would prefer to see his mistress dead than unfaithful.
— Marquis De Sade

Adultery is the application of democracy to love.
— H. L. Mencken

My attitude toward men who mess around is simple: If you find 'em, kill 'em.
— Loretta Lynn