Lucretius' primary didactic aim in De Rerum Natura is to teach his readers to interpret the world around them in such a way as to avoid the formation of false beliefs. The price of failure is extremely high. Someone who possesses false beliefs is liable to experience fear, and so will not be able to attain the state of tranquillity that, for Epicureans, constitutes the moral end. Equipping readers with sufficient knowledge always to form true beliefs about the phenomena they (...) encounter thus serves no less a purpose than the enabling of their future happiness. This paper is concerned with how Lucretian intertextuality contributes to this primary didactic aim. For reasons to be explained below, I will focus on Lucretian engagement with the texts of Greek and Roman drama. I will show that allusions to drama in DRN, rather than functioning simply as ‘honey on the rim of the cup’, make a direct contribution to Lucretius' ethical project, teaching readers how to respond rationally to the full variety of their cultural experience. (shrink)