Georgics 1.276–286

276The Moon herself has made different days lucky for different works, in different order. 277Shun the fifth: pale Orcus and the Furies were born then; 278then Earth in an unspeakable labour bears Coeus and Iapetus and fierce Typhoeus, and the brothers sworn to tear down the sky. 281Three times, you know, they tried to pile Ossa on Pelion, and to roll leafy Olympus on top of Ossa; 283three times the Father scattered the heaped-up mountains with his thunderbolt. 284The seventeenth is lucky both for planting the vine and for taming oxen once caught, and for adding the leashes to the loom: the ninth is better for flight, unfriendly to thefts.