Abstract: The current practice of generating a new human life through in vitro fertilization embryo transfer (IVF-ET) has generated conflicting opinions within the Catholic circle, with the Church magisterium’s firm stand against it and with moral theologians coming from both sides of the camp. The paper brings into discourse some moral issues raised by the practice of IVF-ET from the perspective of moral theology. The discussion limits itself to simple or homologous IVF-ET. It will not include the issue on the moral status of the “wasted” embryos. The focus is on the validity of the principle of inseparability, which is the basis of magisterium’s position against IVF-ET, and on the proper understanding of the natural law. The paper further clarifies whether or not the technologization of the generation of life leads to an instrumental attitude toward the embryo and the child-to-be.