You see, my son, everyone is accustomed to saying that the human community is based on three forces: warriors, monks, and peasants, and this may have been true until yesterday. But we live in new times, in which the man of learning is becoming equally important, even if he is not a monk but a man who studies law, philosophy, the movement of the stars, and many other things, and who doesn't always give an account of what he is doing to his bishop or to his king.