Conjugalia Praecepta

The Athenians yearly solemnized three sacred seedtimes: the first in Scirus, in memory of the first invention by their ancestors of ploughing and sowing; the second at a place called Rharia; and the third under Pelis, which they call βουζύγιον in commemoration of the first spanning of oxen to the plough. But more sacred than all these is the nuptial ploughing and sowing, in order to the procreation of children. And therefore Sophocles rightly calls Venus the fruitful Cytherea. For which reason it highly imports both the man and the woman, when bound together by the holy tie of wedlock, to abstain from all unlawful and forbidden copulation, and from ploughing and sowing where they never desire to reap any fruit of their labor, or, if the harvest come to perfection, they conceal and are ashamed to own it.