“It is impossible if they have given them free course, but we can keep them from spreading and rising. Take, for example, the relations of a father to his daughter, of a mother to her sons, of brothers and sisters. The mother is to her son, the daughter to her father, the sister to her brother, not an object of personal enjoyment, but of pure love, and the passions are not awakened. They would be awakened only when the father should discover that she whom he had accounted his daughter was not his daughter, or the mother that her son was not her son, or that brother and sister were not brother and sister; but even then this passion would be very feeble and humble, and it would be in a man’s power to repress it. The lustful feeling would be feeble, for it would be based on that of maternal, paternal, or fraternal love. Why then can’t you believe that the feeling toward all women might be trained and controlled so that they would regard them in the same light as mothers, sisters, and daughters, and that the feeling of conjugal love might grow out of the basis of such an affection? As a brother permits the feeling of love toward the woman whom he has considered his sister to arise only when he has learned that she is not his sister, so when the Christian feels that his love does not injure anyone, he permits this passion to arise in his soul.”