Ethical organizations are sustainable organizations. Doing good leads to doing well in the long run, while also producing happier and more motivated employees in the short run. The problem, argues Nicholas Epley, is that there are four common myths about morality that lead to misunderstandings about how to create more ethical organizations. Instead of treating ethics as a problem about people’s beliefs, we should treat it as an issue about the systems in which people live and work. Epley explains how businesses, and individuals, can design their policies and structures to ensure they are both doing good and feeling good. This approach offers constructive, concrete ideas for designing ethical systems that keep all of us engaged, effective, and happier.