86. Perhaps, however, it may seem good to some that marriage should again be entered upon for the sake of having children. But if the desire of children be a reason for marrying, certainly where there are children, the reason does not exist. And is it wise to wish to have a second trial of that fruitfulness which has already been tried in vain, or to submit to the solitude which you have already borne? This is the case of those who have no children.