Itaque, imperator, in primo volumine tibi de arte et quas habeat ea virtutes quibusque disciplinis oporteat esse auctum architectum, exposui et subieci causas, quidita earum oporteat eum esse peritum, rationesque summae architecturae partitione distribui finitionibusque terminavi.
Therefore, your Highness, in the first book, I set before you our craft and its excellences and the studies by which the architect should improve himself; I furnished the reasons why he ought to be skilled in them; I analysed the methods of architecture generally, and assigned their limits by my definitions.
final_alignments\Vitruvius_Architecture_Book_3.json