There is a reason why the other man thinks and acts as he does. Ferret out that reason — and you have the key to his actions, perhaps to his personality. Try honestly to put yourself in his place.
Dale CarnegieWhat is the answer to this fatigue? Relax! Relax! Relax! Learn to relax while you are doing your work!
Dale CarnegieAn old man was asked what had robbed him of joy in his life. His reply was, "Things that never happened."
Dale CarnegieDon't be afraid to give your best to what seemingly are small jobs. Every time you conquer one it makes you that much stronger. If you do the little jobs well, the big ones will tend to take care of themselves.
Dale CarnegieWhy prove to a man he is wrong? Is that going to make him like you? Why not let him save face? He didn't ask for your opinion. He didn't want it. Why argue with him? You can't win an argument, because if you lose, you lose it; and if you win it, you lose it. Why? You will feel fine. But what about him? You have made him feel inferior, you hurt his pride, insult his intelligence, his judgment, and his self-respect, and he'll resent your triumph. That will make him strike back, but it will never make him want to change his mind. A man convinced against his will is of the same opinion still.
Dale Carnegie