This short book asks how such questions arose from the social and political realities of the times in which the early utilitarians lived. Nobody need fear being crushed by heavy metaphysical reasoning or incomprehensible algebra when this story is told. This book argues that the answers to all the questions that the early utilitarians found so difficult are transparent when we stand upon their shoulders to look back upon their work. The problem for the early utilitarians was to free themselves from the prejudices of their time. The lesson for us is perhaps that we too need to free ourselves from the prejudices of our own time.