in Lyne, plaine, and Solid: by
_Geometricall_, _Arithmeticall_, _Opticall_, _Musicall_,
_Astronomicall_, _Cosmographicall_" (& to be brief) by all the former
Deriued _Artes Mathematicall_, and other Naturall Artes, hable to be
confirmed and stablished. If this be so: then, may you thinke, that
_Architecture_, hath good and due allowance, in this honest Company of
_Artes Mathematicall_ Deriuatiue. I will, herein, craue Iudgement of two
most perfect _Architectes_: the one, being _Vitruuius_, the Romaine: who
did write ten bookes thereof, to the Emperour _Augustus_ (in whose daies
our Heauenly Archemaster, was borne): and the other, _Leo Baptista
Albertus_, a Florentine: who also published ten bookes therof.
_Architectura_ (sayth _Vitruuius_) _est Scientia pluribus disciplinis &
varijs eruditionibus ornata: cuius Iudicio probantur omnia, quae ab
caeteris Artificibus perficiuntur opera._ That is. +Architecture, is a
Science garnished with many doctrines & diuerse instructions: by whose
Iudgement, all workes, by other workmen finished, are Iudged.+ It
followeth. _Ea nascitur ex Fabrica, & Ratiocinatione. &c. Ratiocinatio
autem est, quae, res fabricatas, Solertia ac ratione proportionis,
demonstrare at[que] explicare potest. +Architecture, groweth of Framing,
and Reasoning. &c. Reasoning, is that, which of thinges framed, with
forecast, and proportion: can make demonstration, and manifest
declaration.+_ Againe. _Cum, in omnibus enim rebus, tum maxime etiam in
Architectura, haec duo insunt: quod significatur, & quod significat.
Significatur proposita res, de qua dicitur: hanc autem Significat
Demonstratio, rationibus doctrinarum explicata. +Forasmuch as, in all
thinges: therefore chiefly in Architecture, these two thinges are: the
thing signified: and that which signifieth. The thing propounded,
whereof we speake, is the thing Signified. But Demonstration, expressed
with the reasons of diuerse doctrines, doth signifie the same thing.+_
After that. _Vt literatus sit, peritus Graphidos, eruditus Geometriae, &
Optices non ignarus: instructus Arithmetica: historias complures
nouerit, Philosophos diligenter audiuerit: Musicam sciuerit: Medicinae
non sit ignarus, responsa Iurisperitorum nouerit: Astrologiam,
Caeli[que] rationes cognitas habeat. +An Architect+_ (sayth he) +_ought
to vnderstand Languages, to be skilfull of Painting, well instructed in
Geometrie, not ignorant of Perspectiue, furnished with Arithmetike, haue
knowledge of
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