If you argue and rankle and contradict, you may achieve a victory sometimes; but it will be an empty victory because you will never get your opponent's good will.
Dale CarnegieIn a Nutshell - Fundamental Techniques In Handling People; Principle 1 - Don't criticize, condemn or complain; Principle 2 - Give honest and sincere appreciation; Principle 3 - Arouse in the other person an eager want.
Dale Carnegie