Sal has a date with his philosophy textbook. He has scoped out a comfortable chair, brought his textbook and highlighter in his backpack, and allocated 20 minutes to cuddle up and read an assigned chapter in his philosophy textbook. The material is quite dry, so to spice it up he also decided to bring along his earbuds and iPad so he can rock out (at low volume, of course) to a new indie band he likes as he reads. His plan is that the pace of the music will keep him plowing through the chapter, no matter how boring the material is. The way Sal sees it, listening to that music while reading the chapter is like adding a spoonful of sugar to help the medicine go down.