Remember happiness doesn't depend upon who you are or what you have; it depends solely on what you think.
Dale CarnegieCriticism of others is futile and if you indulge in it often you should be warned that it can be fatal to your career.
Dale CarnegieThe words "Think and Thank" are inscribed in many of the Cromwellian churches of England. These words ought to be inscribed in our hearts, too: "Think and Thank". Think of all we have to be grateful for, and thank God for all our boons and bounties.
Dale CarnegieLet's never try to get even with our enemies, because if we do we will hurt ourselves far more than we hurt them. Let's do as General Eisenhower does: let's never waste a minute thinking about people we don't like.
Dale Carnegie