For all its wonders and benefits annap, learning, especially if pursued, rigorously on a broad front, has a lot of negative aspects. Its time consuming, effortful, fraught with very uncomfortable, anxious and frustrating periods of feeling out of ones element. Often one's most comforting and preciously held understandings are challenged, along with ones pride (after all the first element of becoming educated is the admission or discovery that you don't know enough). Then there is the drudgery. Fighting your way through all the reading that is required, and the homework and the practice. And the listening and questioning, and effort. Certainly the rewards outweigh the costs, but the costs are considerable. Its like my wife, who had to read Heart of Darkness in a required english class for her BS in nursing. The first three quarters of the way through were grueling, and all she did was gripe. Then suddenly, the light went on, and she 'got it'. Now she thinks (and rightly so) that its one of the most important things she did in college, and actually was glad when she had to read it again for another class.

For all its intrinisic rewards, the heart of the educational process is delayed gratification and frustration tolerance. Children are pretty insightful, and grasp this truth very quickly. They don't really have to be taught to resent learning. They know that there's a lot of frustration, tedium and delayed rewards associated with it, and those have never been the long suit of childhood. Overcoming this natural resistance and allowing a childs innate desire to KNOW to overide it, has always been the great trick of good teachers and parents.