Criticism of others is futile and if you indulge in it often you should be warned that it can be fatal to your career.
Dale CarnegieWhen we hate our enemies, we are giving them power over us: power over our sleep, our appetites, our blood pressure, our health and our happiness. Our enemies would dance with joy if only they knew how they were worrying us, lacerating us, and getting even with us! Our hate is not hurting them at al, but our hate is turning our days and nights into a hellish turmoil.
Dale Carnegie