Suppose we required each of the things mentioned to be done according to written rules, and we required the person elected or appointed to office by lot, on the basis of chance, to oversee these written rules of ours: what then if this person were to take no notice of what is written down, in order either to profit in some way or to do some personal favor, and were to take it upon himself to do different things, contrary to these, when he possesses no knowledge?