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

A large woodcut illustration depicts three figures standing side-by-side, each wearing a long robe and a distinct, ornate crown or headdress, framed within an architectural structure resembling a portico.

There are also other histories of the same kind, the knowledge of which an architect should possess. Philosophy, however, makes an architect great of spirit and ensures he is not arrogant, but rather easy-going, fair, and faithful: without avarice, which is most important. For no work can be done truly without faith and integrity. He should not be greedy, nor should he have his mind occupied with receiving gifts, but with gravity he should maintain his dignity while having a good reputation. For this is what philosophy prescribes. Furthermore, philosophy explains the nature of things, which is called in Greek physiologia natural science: which it is necessary for the studious to have known, as it has many and various natural questions: as even in the conduction of waters. For in the courses and circuits, and in the leveled plane, and in the expressions, natural spirits are formed differently in one way or another: the faults of which no one will be able to remedy, unless he has known the principles of the nature of things from philosophy. Likewise, one who reads the books of Thebia or Archimedes, and of the others who have written down precepts of this kind, will not be able to agree with them unless he has been instructed in these things by philosophers. Furthermore, he should know music, so that he may have knowledge of the canonical and mathematical principle: furthermore, he may be able to correctly perform the temperings of ballistae, catapults, and scorpions. For in the capitals, on the right and left, there are holes for hemistonia semi-cylinders/frames, through which the ropes twisted from nerve are stretched with windlasses and levers, which do not close nor bind unless they have made the sounds certain and equal to the ears of the artist. No.