When it comes to our health, there are essentially four things under our control: the decision not to smoke, a commitment to exercise, the quality of our diet, and our level of optimism. And optimism is at least as beneficial as the others.
Martin SeligmanWhat determines how much time and deliberate practice a child is willing to devote to achievement? Nothing less than her character.
Martin SeligmanIf we just wanted positive emotions, our species would have died out a long time ago.
Martin SeligmanThe Fundamentalist Religions simply seem to offer more hope for a brighter future than do the more liberal, humanistic ones.
Martin Seligman