quod genus illa foris quae vere transpiciuntur, ianua cum per se transpectum praebet apertum, multa facitque foris ex aedibus ut videantur; is quoque enim duplici geminoque fit aere visus: primus enim citra postes tum cernitur aer, inde fores ipsae dextra laevaque sequuntur, post extraria lux oculos perterget et aer alter et illa foris quae vere transpiciuntur.
It is the same as with those objects which are seen in their reality through the doors outside, when the doorway provides an open view through it and allows us to see from the house many things outside. For this vision also is brought about by two distinct stretches of air; for first in this case is seen the air on this side of the doors, next follows the door itself right and left leaf, afterwards the external light brushes the eyes, and the other air, and those things which are seen in their reality through the doors outside.
final_alignments\Lucretius_De_Rerum_Natura_Book4.json