If you ask some people what is the nature of life, they will say, "The further we go in striving for happiness, the further we are removed from it." This is true. But the one who does not know that unhappiness does not really exist, takes the wrong way. Besides happiness is more natural than unhappiness, as good is more natural than evil, and health than illness. And yet man is so pessimistic. If we tell him how good someone is he cannot believe this to be true, but if we tell him how bad a person is he will readily believe it.