"Jesus’ beatitude tells us that peace is both a messianic gift and the fruit of human effort. In effect, peace presupposes a humanism open to transcendence. It is the fruit of the reciprocal gift, of a mutual enrichment, thanks to the gift which has its source in God and enables us to live with others and for others. The ethics of peace is an ethics of fellowship and sharing. It is indispensable, then, that the various cultures in our day overcome forms of anthropology and ethics based on technical and practical suppositions which are merely subjectivistic and pragmatic, in virtue of which relationships of coexistence are inspired by criteria of power or profit, means become ends and vice versa, and culture and education are centred on instruments, technique and efficiency alone. The precondition for peace is the dismantling of the dictatorship of relativism and of the supposition of a completely autonomous morality which precludes acknowledgment of the ineluctable natural moral law inscribed by God upon the conscience of every man and woman. Peace is the building up of coexistence in rational and moral terms, based on a foundation whose measure is not created by man, but rather by God."
Pope Benedict XVI