Umbra videtur item nobis in sole moveri et vestigia nostra sequi gestumque imitari (aera si credis privatum lumine posse indugredi, motus hominum gestumque sequentem; nam nil esse potest aliud nisi lumine cassus aer id quod nos umbram perhibere sumus); nimirum quia terra locis ex ordine certis lumine privatur solis quacumque meantes officimus, repletur item quod liquimus eius, propterea fit uti videatur, quae fuit umbra corporis, e regione eadem nos usque secuta.
Our own shadow also appears to move in the sun, and to follow our footsteps, imitating our gestures (if you can imagine air without light able to march along, following the movements and gestures of men; for that which we are accustomed to call shadow can be nothing else but air without light); doubtless because the earth in certain spots one after another is deprived of the suns light wherever we in our course obstruct it, and what part of it we have left is filled up again, which causes it to seem that what was the shadow of our body remains the same and follows always opposite to us.
final_alignments\Lucretius_De_Rerum_Natura_Book4.json