Kind of a dumb question, but sometimes reading math books (most recently, a book on elementary probability) in addition to the coursework I already have for my summer session gets to be a bit too stressing. I feel like I should have math as a hobby as someone who is majoring in it. I mean, I enjoy it, that's true. But I think I enjoy it only when it has a payoff, like if I'm getting a grade for it. If I see that I'm doing my self-studying correctly, then I don't feel that same sense of accomplishment as when I'm doing work for the class for the same subject. I don't really feel that it's worth the effort when I self-study. Yet, as a math major, I feel like I should enjoy math, and should make a hobby of it. What do you think? As a math major, should I study math in my free time?