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.
Marcus Vitruvius PollioNothing suffers annihilation, but at dissolution there is a change, and things fall back to the essential element in which they were before.
Marcus Vitruvius PollioThere are also kinds of water that cause death, as they run through harmful juices in the soil and become poisonous.
Marcus Vitruvius PollioBasilicas should be constructed on a site adjoining the forum and in the warmest possible quarter, so that in winter business men may gather in them without being troubled by the weather.
Marcus Vitruvius Pollio