 The Ethics offers an analysis of moral worth and the degree of praise or blame that should attach to agents and their actions; it breaks off at the beginning of the second book. The Conversations is a pair of debates (among characters who appear to Abelard in a dream) over the nature of happiness and the supreme good: the Philosopher, who claims to follow only natural reason, first debates with the Jew, who follows the Old Law; the Philosopher then debates the Christian, who defends Christian ethics from a philosophical point of view. Abelard also wrote a slight work of practical advice for his son: