I am setting up this thread in preparation for devoting one or more episodes of the Lucretius Today podcast to the sections of this work devoted to attacking Epicurus. I'd like to add here quotes that are relevant either to Epicurus directly or to issues where Cicero is directly contradicting Epicurus. This collection will then be used to develop the outline for the podcasts devoted to this topic.
A transcribed copy of the Yonge edition is here. I would also like to add a link to the most recent public domain version of the Loeb edition.