Develop an account of virtues and vices. Commandments of the heart. Develop criteria for correct action.
Rules are general guidelines, rules of thumb.
Rules define right and wrong. Indeed he who investigates with the pure intelligence set by the creator in the heart of each man and scrutinizes the order and laws of creation, will discover the truth. There is a creator, greater than all creatures, since he created them 2. He understands all, for he created us as intelligent 3. We ought to worship him, for he is master of all 4.