It’s important to have space in which to think. Yesterday, I overheard someone complain, “I left my Blackberry at home, so I was so bored during my cab ride home. I just had to sit there.”

There are few things that I love more than looking out the window of a car, train, or bus. One day, when I was gazing out of a bus window, I was struck by a thought: “What do I want out of life?” “Well,” I thought, “I want to be happy.” … If I’d been checking my emails, I might never have had the idea for the happiness project.

—Gretchen Rubin