A man may owe honour and respect to an ancient, or wise man; defence to his child or friend; relief and support to the distressed; and gratitude to a benefactor, to such a degree, that all he has, all he can do, cannot sufficiently pay it: but all these give no authority, no right to anyone, of making laws over him from whom they are owing. And it is plain, all this is due not only to the bare title of father; not only because, as has been said, it is owing to the mother too, but because these obligations to parents, and the degrees of what is required of children, may be varied by the different care and kindness, trouble and expense, which are often employed upon one child more than another.