Authors:

Huts they made then, and fire, and skins for clothing, And a woman yielded to one man in wedlock... ... Common, to see the offspring they had made; The human race began to mellow then. Because of fire their shivering forms no longer Could bear the cold beneath the covering sky.

Titus Lucretius Carus, Anthony M. Esolen (1995). “De rerum natura”, Johns Hopkins Univ Pr
Huts they made then, and fire, and skins for clothing, And a woman yielded to one man in wedlock... ... Common, to see the offspring they had made; The human race began to mellow then. Because of fire their shivering