From the pen of Christopher F. Chabris:
So why don't students like school? According to Mr. Willingham, one major reason is that what school requires students to do -- think abstractly -- is in fact not something our brains are designed to be good at or to enjoy. When we confront a task that requires us to exert mental effort, it is critical that the task be just difficult enough to hold our interest but not so difficult that we give up in frustration.
And previously from the pen of Christopher F. Chabris:
The most basic claim put forth by Herrnstein and Murray was that smart people do better than dumb people. What is so troubling about that? We rarely encounter an argument over the fact that beautiful people do better than ugly people, or tall people better than short ones, though each of these propositions is also true. Is an intellectual meritocracy less just or moral than a physical one?