"Adults tend to talk about learning as if it were medicine: unpleasant, but necessary and good for you. Why not instead think of learning as if it were food—something so valuable to humans that they have evolved to experience it as a pleasure? The more a person likes fresh, healthy food, the more likely that individual is to have a good diet. Why can’t it be the same with learning? Let children learn because they love to—think only of a 2-year-old trying to talk to see how natural humans’ thirst for knowledge is. Then, in school, help children build on their natural joy in learning.
Joy should not be trained out of children or left for after-school programs. The more difficult a child’s life circumstances, the more important it is for that child to find joy in his or her classroom. "Pleasure" is not a dirty word. And it’s not antithetical to the goals of K-12 public education. It is, in fact, the sine qua non."
(Excerpt from the Atlantic Article: Joy A Subject Schools Lack)