Clement of Alexandria : Scripture says, "At least grant the offspring to its mother for its first seven days." For if nothing comes to be without reason and milk flows in the mothers for the nourishment of the offspring, then in taking the offspring away from the providential endowment of milk, a person is doing violence to nature. So Greeks and anyone else who runs the law down ought to blush for shame if the law is generous over irrational beasts, whereas they actually expose human offspring to die. Yet for a long time with prophetic authority the law has cut short their ferocity through the commandment of which we have been speaking. For if the law refuses to allow the offspring of irrational creatures to be separated from their mother before taking milk, it is far more forceful in preparing human beings against that cruel, uncivilized view. If they ignore nature, at least they may not ignore the lessons of the law. — The Stromata Book 2