The most important thing in life is not simply to capitalize on your gains. Any fool can do that. The important thing is to profit from your losses. That requires intelligence, and makes the difference between a man of sense and a fool.
Dale CarnegieIf you want to be happy, set yourself a goal that commands your thoughts, liberates your energy and inspires your hopes. Happiness is within you. It comes from doing some certain thing into which you can put all your thought and energy. If you want to be happy, get enthusiastic about something.
Dale Carnegie'When you have a lemon, make a lemonade.' That is what a great educator does. But the fool does the exact opposite. If he finds that life has handed him a lemon, he gives up and says, 'I 'm beaten. It is fate. I haven't got a chance.' Then he proceeds to rail against the world and indulge in an orgy of self-pity .
Dale Carnegie