On November 16, 2014, Pope Francis addressed the Association of Italian Catholic Doctors, and reminded them that abortion and euthanasia are sins against God the Creator. Here are excerpts from this address:
In many places, the quality of life is related primarily to economic means, to "well-being", to the beauty and enjoyment of the physical, forgetting other more profound dimensions of existence — interpersonal, spiritual and religious. In fact, in the light of faith and right reason, human life is always sacred and always "of quality". There is no human life that is more sacred than another — every human life is sacred — just as there is no human life qualitatively more significant than another, only by virtue of resources, rights, great social and economic opportunities. (...)
The dominant thinking sometimes suggests a "false compassion", that which believes that it is: helpful to women to promote abortion; an act of dignity to obtain euthanasia; a scientific breakthrough to "produce" a child and to consider it to be a right rather than a gift to welcome; or to use human lives as guinea pigs presumably to save others. Instead, the compassion of the Gospel is that which accompanies in times of need, that is, the compassion of the Good Samaritan, who "sees", "has compassion", approaches and provides concrete help (cf. Lk 10:33).
Your mission as doctors puts you in daily contact with many forms of suffering. I encourage you to take them on as "Good Samaritans", caring in a special way for the elderly, the infirm and the disabled. Fidelity to the Gospel of life and respect for life as a gift from God sometimes require choices that are courageous and go against the current, which in particular circumstances, may become points of conscientious objection. And this fidelity entails many social consequences.
We are living in a time of experimentation with life. But a bad experiment. Making children rather than accepting them as a gift, as I said. Playing with life. Be careful, because this is a sin against the Creator: against God the Creator, who created things this way.
When so many times in my life as a priest I have heard objections: “But tell me, why the Church is opposed to abortion, for example? Is it a religious problem?” No, no. It is not a religious problem. “Is it a philosophical problem?” No, it is not a philosophical problem. It’s a scientific problem, because there is a human life there, and it is not lawful to take out a human life to solve a problem. “But no, in modern thought…” But, listen, in ancient thought and modern thought, the word “kill” means the same thing.
The same evaluation applies to euthanasia: we all know that with so many old people, in this culture of waste, there is this hidden euthanasia. But there is also the other. And this is to say to God, “No, I will accomplish the end of life, as I will.” A sin against God the Creator! Think hard about this. (Translation by Vatican Radio.)