Tum porro si nil esset quod inane vacaret, omne foret solidum; nisi contra corpora certa essent quae loca complerent quaecumque tenerent, omne quod est, spatium vacuum constaret inane.
Then further, if there were nothing void and empty, the universe would be solid; unless on the other hand there were definite bodies to fill up the places they held, then the existing universe would be vacant and empty space.
final_alignments\Lucretius_De_Rerum_Natura_Book1.json