et tamen hoc quoque uti concedam scire, at id ipsum quaeram, cum in rebus veri nil viderit ante, unde sciat quid sit scire et nescire vicissim, notitiam veri quae res falsique crearit, et dubium certo quae res differre probarit.
And yet even if I grant that he knows that, still I will ask just this: since material things had no truth for his vision to begin with, how he knows what it is to know or not to know as the case may be, what gave him the concept of true and false, what evidence proved that the doubtful differs from the certain.
final_alignments\Lucretius_De_Rerum_Natura_Book4.json