At this point, we can see that Epicurus has so refined the account of pleasure and pain that he is able to tie them to virtue. In the Letter to Menoeceus, he claims, as a truth for which he does not argue, that virtue and pleasure are inseparable and that living a prudent, honorable, and just life is the necessary and sufficient means to the pleasure that is the end of life (132). An example of what he might mean is found in Principal Doctrines, where Epicurus holds that justice is a contract am