Perhaps this sad view of life derives from schooling. Of course, life has its ups and downs, in adulthood and in childhood. But there are plenty of opportunities to learn to tolerate unpleasantness without adding unpleasant schooling to the mix. Research has shown that people of all ages learn best when they are self-motivated, pursuing questions that are their own real questions, and goals that are their own real-life goals. In such conditions, learning is usually joyful.