There’s not some finite bin of pleasure in the world, and there’s no reason to feel guilty for enjoying whatever measure of it comes our way for as long as it lasts. On the contrary, when I’m happy, I’m much more apt to be generous and patient; and one cheerful person can lift the mood of an entire household. And even if my happiness didn’t do anyone else any good: I matter, too! It’s a good thing to be happy. Why wouldn’t it be?