What competence does not the child possess in its smiling, its playing, its screaming! in short, in its mere existence! Are you capable of resisting its desire? Or do you not hold out to it, as mother, your breast; as father, as much of your possessions as it needs? It compels you, therefore it possesses what you call yours. If your person is of consequence to me, you pay me with your very existence; if I am concerned only with one of your qualities, then your compliance, perhaps, or your aid, has a value (a money value) for me, and I purchase it.