1. The Gospel of life is at the heart of Jesus’ message. Lovingly received day after day by the Church, it is to be preached with dauntless fidelity as “good news” to the people of every age and culture. . . .
63. . . . the use of human embryos or fetuses as an object of experimentation constitutes a crime against their dignity as human beings who have a right to the same respect owed to a child once born, just as to every person. This moral condemnation also regards procedures that exploit living human embryos and fetuses-sometimes specifically “produced” for this purpose by in vitro fertilization-either to be used as “biological material” or as providers of organs or tissue for transplants in the treatment of certain diseases. The killing of innocent human creatures, even if carried out to help others, constitutes an absolutely unacceptable act.
71. . . . It is therefore urgently necessary, for the future of society and the development of a sound democracy, to rediscover those essential and innate human and moral values which flow from the very truth of the human being and express and safeguard the dignity of the person: values which no individual, no majority and no State can ever create, modify or destroy, but must only acknowledge, respect and promote.
Pope Saint John Paul II
Evangelium Vitae: On the Value and Inviolability Of Human Life