We resume the above discussion about sense perception and violence and delve further into the campaign Lucretius wages against presumed subjectivity. This chapter is a combination of two previously published articles (“Ocular Penetration, Grammatical Objectivity, and an Indecent Proposal in De Rerum Natura” and “Seminal Verse: Atomic Orality and Aurality in De Rerum Natura” ) both of which have undergone revision and expansion for the present volume. The weight of inquiry falls especially on sight and hearing, which are, perhaps not coincidentally, the primary modes of experiencing the poem or – to put it more in Lucretius’ parlance – the senses being assailed by the poem itself. Shown to be less than powerful in the womb in Chapter 2, here we find that Lucretius alters this uterine imagery to prove that men and their sense orifices are involuntary, womb-like repositories for nature’s inseminating forces.