So sure, start with a slogan. But don't bother wasting any time on it if you're merely going for catchy. Aim for true instead.
Seth GodinDecide, before you start, that you're going to change three things about what you do all day at work. Then, as you're reading, find the three things and do it. The goal of the reading, then, isn't to persuade you to change, it's to help you choose what to change.
Seth Godin