M. Vitruvius per Iocundum solito castigatior factus cum figuris et tabula ut iam legi et intelligi possit

A woodcut illustration depicts three caryatid-like figures standing on pedestals, each wearing a crown-like capital on their head, representing architectural columns.

Likewise, there are other histories of the same kind, knowledge of which it behooves architects to hold. Philosophy, indeed, perfects the architect with a great soul, and so that he may not be arrogant, but rather easy, equitable, and faithful; without avarice, which is most important. For no work can truly be done without faith and purity. Let him not be greedy, nor have his mind occupied in receiving gifts, but let him maintain his own dignity with gravity by having a good reputation. For philosophy prescribes these things. Furthermore, philosophy explains the nature of things, which in Greek is called physiologia physiology/study of nature, which it is necessary to know more studiously, because it has many and various natural questions, as even in the conduction of waters. For in the courses and circuits, and the leveled plane, and the expressions, natural spirits are produced in one way or another, for whose obstructions no one will be able to provide a remedy unless he who has known the principles of the nature of things from philosophy. Likewise, he who reads the books of Ctesibius or Archimedes, and the others who have written precepts of this kind, will not be able to agree with them, unless he has been instructed in these matters by philosophers. It is necessary that he know music, so that he may have knowledge of canonical theoretical and mathematical reasoning, and further, that he may correctly make the settings of ballistae, catapults, and scorpions. For in the capitals, on the right and left, there are holes for the frames...

The text ends abruptly at the bottom of the page, likely continuing on the following folio.