You can't just decide to be happy."

"No, you can't. But you can sure as hell decide to be miserable. Is that what you want? Do you want to be the asshole who went to Fillory and was miserable there? Even in Fillory? Because that's who you are right now."

There was something true about what Alice was saying. But he couldn't grasp it. It was too complex, or too simple. Too something...It was strange: he's thought that doing magic was the hardest thing he would ever do, but the rest of it was so much harder. It turned out that magic was the easy part.

Autore: Lev Grossman