  Which is not to suggest that conscience, virtue, and self-love are identical, although Butler connected them very deeply (Frey 1992 and n.p.). Although virtue tends to coincide with interest it tends to coincide because a virtuous life is a life with the right balance of benevolent passions and dispositions to make one happy and a life which responds to the unchanging and immediate moral authority of conscience -- although they are approved of and motivated by self-love as well.