"For children are the glory of marriage, the treasure of parents, the wealth of family life. They develop within their parents an entire cluster of virtues, such as paternal love and maternal affection, devotion and self-denial, care for the future, involvement in society, the art of nurturing. With their parents, children place restraints upon ambition, reconcile the contrasts, soften the differences, bring their souls ever closer together, provide them with a common interest that lies outside of them, and opens their eyes and hearts to their surroundings and for their posterity. As with living mirrors they show their parents their own virtues and faults, force them to reform themselves, mitigating their criticisms, and teaching them how hard it is to govern a person."