All machinery is derived from nature, and is founded on the teaching and instruction of the revolution of the firmament.
Marcus Vitruvius PollioGeometry is of much assistance in architecture, and in particular it teaches us the use of the rule and compasses, by which especially we acquire readiness in making plans for buildings in their grounds, and rightly apply the square, the level, and the plummet. By means of optics the light in buildings can be drawn from fixed quarters of the sky. Difficult questions involving symmetry are solved by means of geometrical theories and methods.
Marcus Vitruvius PollioA liberal education forms a single body. Those, therefore, who from tender years receive instruction in the various forms of learning, recognize the same stamp on all the arts, and an intercourse between all studies, and so they more readily comprehend them all.
Marcus Vitruvius PollioThe thickness of the walls should be sufficient for two armed men to pass each other with ease.
Marcus Vitruvius Pollio