As to whether we can fulfil the moral law, I should say hardly any
of us. Some of us are utterly incapable of fulfilling its plainest
dictates. As there are men born physically cripples, and intellectually
idiots, so there are some who are moral cripples and idiots, and can be
kept straight not even by punishment. For these people there is nothing
but shutting up, or extirpation.