Rabbi Yochanan said: — If, after the death of her husband, a woman should remain unmarried for ten years and then marry again, she will have no children. Rav Nachman added: — Provided she have not thought of marrying all the while; but if she had thought of marrying again, in that case she will have children. Rava once said to Rav Chisda's daughter (who bore children to Rava, though she did not marry him until ten years after her first husband's death), " The Rabbis have their doubts about you.M She replied, " I had always set my heart upon thee. • A woman once said to Rav Yoseph, " I waited ten years before I married again, and then I had children. " Daughter, said he, " do not bring the words of the wise into discredit. It is thou, not they, that are mistaken. Then the woman confessed that she had been a transgressor