Ancient Quote by Marcus Vitruvius Pollio
“There are two styles of walls "opus reticulatum," now used by everybody and the ancient style called "opus incertum." Of these, the reticulatum looks better, but its construction makes it likely to crack. On the other hand, in the opus incertum, the rubble lying in courses and imbricated, makes a wall which though not beautiful, is stronger.”
![“Leave a cavity behind the [wall] facings, and on the inside build walls two feet thick, made of red dimension stone or burnt brick or lava in courses, and then bind them to the fronts by means of iron clamps and lead. The beds and builds, all settling equally and bonded at the joints, will not let…” quote by Marcus Vitruvius Pollio](https://sms4smile.com/quotes/img-quotes/d76/marcus-vitruvius-pollio-7498_bed_leave-a-cavity-behind-the-wall-facings-a_5922.jpg)
![“The [engineer] should be equipped with knowledge of many branches of study and varied kinds of learning, for it is by his judgement that all work done by the other arts is put to test. This knowledge is the child of practice and theory.” quote by Marcus Vitruvius Pollio](https://sms4smile.com/quotes/img-quotes/afa/marcus-vitruvius-pollio-7498_art_the-engineer-should-be-equipped-with-kno_386834.jpg)
![“All these soft kinds [of stone] have the advantage that they can be easily worked as soon as they have been taken from the quarries. Under cover, they play their part well; but in open and exposed situations the frost and rime make them crumble, and they go to pieces. On the seacoast, too, the…” quote by Marcus Vitruvius Pollio](https://sms4smile.com/quotes/img-quotes/541/marcus-vitruvius-pollio-7498_advantage_all-these-soft-kinds-of-stone-have-the-a_406721.jpg)
