There are also half bricks. As the bricks are always laid so as to break joints, this lends strength and a not unattractive appearance to both sides of such walls.

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.

Architect's designs must refer to the unquestionable perfection of the body's symmetry and proportions. If a building is to create a sense of eurythmia, it is essential that it mirrors these natural laws of harmony and beauty

Cold winds are disagreeable, hot winds enervating, moist winds unhealthy.

From the exterior face of the wall towers must be projected, from which an approaching enemy may be annoyed by weapons, from the embrasures of those towers, right and left.

When the juices of trees have no means of escape, they clot and rot in them, making the trees hollow and good for nothing.

All machinery is derived from nature, and is founded on the teaching and instruction of the revolution of the firmament.