Were a man to order his life by the rules of true reason, a frugal substance joined to a contented mind is for him great riches; for never is there any lack of a little.
LucretiusHuts 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.
Lucretius