Cicero and Aquinas alike must not be given Roman instrumental control over these celebratory sessions. Serres summarizes the point by reference to the simulacra numinum of Lucretius, those simulations or images which cut across vectors of space and time like so many nomads, rogue wanderers (recall, precisely, Cicero’s joking sarcasm about Epicurus’s mind) along fragments of time. 32 Such ghosts, such simulacra, are as real, as material, as anything (and everything)