"Imagine a medieval world in which every aspect of your life is dictated by where you were born, the social class you were born into, who your family is, and what ethnic or racial group you belong to. At birth, your fate is settled. what work you can do, whom you can marry, where you can live, and where you can be buried — all are predetermined. Think what it would be like to live under such constraints. Then ask yourself what it would be like never to travel more than fifty miles from your birthplace. At each point, do not assume that you are the one out of a hundred who is a noble or part of the landed gentry or merchant class."
My book