To be actively pro-life is to contribute to the renewal of society through the promotion of the common good. It is impossible to further the common good without acknowledging and defending the right to life, upon which all the other inalienable rights of individuals are founded and from which they develop.
Pope John Paul IITaking into account these distinctions, in harmony with the Magisterium of my Predecessors[81] and in communion with the Bishops of the Catholic Church, I confirm that euthanasia is a grave violation of the law of God, since it is the deliberate and morally unacceptable killing of a human person.
Pope John Paul IIThe legal toleration of abortion or of euthanasia can in no way claim to be based on respect for the conscience of others, precisely because society has the right and the duty to protect itself against the abuses which can occur in the name of conscience and under the pretext of freedom.
Pope John Paul II