He was a man who had no qualms about preaching one thing and practising another in his private life.他就是这种人，人前说一套，背地里又做一套，而且还心安理得。How could he ever live with himself after being a stool pigeon?当了眼线后，他怎么还能心安理得？I could have shot him without any compunction.我就算开枪打死他也会心安理得。I could never live with myself if I hit a child with my car.如果我开车撞了小孩，我永远也不能再心安理得。