" But whatever a wide-ranging study might show about the connection between ambition and happiness generally, I realized that for my own part, I was much more likely to take risks, reach out to others, and expose myself to rejection and failure when I felt happy. When I felt unhappy, I felt defensive, touchy, and self-conscious. For example, if I’d been feeling unhappy, I doubt I would have proposed forming a writers’ strategy group. I wouldn’t have wanted to open myself up to rejection or failure. "

― Gretchen Rubin , The Happiness Project: Or Why I Spent a Year Trying to Sing in the Morning, Clean My Closets, Fight Right, Read Aristotle, and Generally Have More Fun