" Do not piss as you stand and face the sun, but do it after the sun sets and before it rises, and even then do not be naked, for nights belong to the gods.
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Sire your children when you return from a feast of the gods, not when you return from an ill-omened burial.
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The sixth day of the month does not favor plants but is good for the birth of boys; it does not favor either the birth or the marriage of girls. But gelding of kids and lambs hurts less then. "

― Hesiod , Theogony / Works and Days