The 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 IIThe obligation to earn one's bread by the sweat of one's brow also presumes the right to do so. A society in which this right is systematically denied, in which economic policies do not allow workers to reach satisfactory levels of employment, cannot be justified from an ethical point of view, nor can that society attain social peace.
Pope John Paul IIIn the past, it was possible to destroy a village, a town, a region, even a country. Now it is the whole planet that has come under threat. This fact should compel everyone to face a basic moral consideration; from now on, it is only through a conscious choice and then deliberate policy that humanity will survive.
Pope John Paul II