Architecture depends on Order, Arrangement, Eurythmy, Symmetry , Propriety , and Economy.

Bricks should be made in Spring or Autumn so that they may dry uniformly.

For siege works against bold and venturesome men should be constructed on one plan, on another against cautious men, and on still another against the cowardly.

Basilicas 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.

Architecture depends on Order, Arrangement, Eurythmy, Symmetry , Propriety , and Economy.

Burn shavings and splinters of pitch pine, and when they turn to charcoal, put them out, and pound them into mortar with size. This will make a pretty black for fresco painting.

Oak... lasts for an unlimited period when buried in underground structures... when exposed to moisture... it cannot take in liquid on account of its compactness, but, withdrawing from the moisture, it resists it and warps, thus making cracks.