Altars should face the east, and should always be placed on a lower level than are the statues in the temples, so that those who are praying and sacr… - Vitruvius

Remembering... that Eratosthenes of Cyrene, employing mathematical theories and geometrical methods, discovered from the course of the sun, the shadows cast by an equinoctial gnomon, and the inclination of the heaven that the circumference of the earth is two hundred and fifty-two thousand stadia, that is, thirty-one million five hundred thousand paces.

Neque enim ingenium sine disciplina aut disciplina sine ingenio perfectum artificem potest efficere.

Therefore it was the discovery of fire that originally gave rise to the coming together of men, to the deliberate assembly, and to social intercourse.