Life is short, don't ruin your marriage by having an affair
The founder of the Ashley Madison website, Noel Biderman, is himself married. He says he has never had an affair. His website is, of course, based on encouraging married people to cheat. Its tagline is: "Life is short. Have an affair".
He was once asked how he would feel if he discovered his wife had been unfaithful? He said he would be "devastated".
He revealed this in an interview with the 'Jerusalem Post' last year. Biderman has also said he believes: "None of us anywhere are engineered for monogamy."