3.  Not that I think it is absolutely our duty to cut ourselves off from those who do not receive the faith, but rather to have regard to them in accordance with the old law of love, and to write to them with one consent, giving them all exhortation with pity, and to propose to them the faith of the fathers, and invite them to union.  If we succeed we should be united in communion with them; if we fail we must be content with one another and purge our conduct of this uncertain spirit, restoring the evangelical and simple conversation followed by those who accepted the Word from the beginning.  “They,” it is said, “were of one heart and of one soul.” Acts iv. 32.  If they obey you, this will be best; if not, recognise the real authors of the war, and, for the future do not write me any more letters about reconciliation.