"Whether moral and social phenomena are really exceptions to the general certainty and uniformity of the course of nature; and how far the methods, by which so many of the laws of the physical world have been numbered among truths irrevocably acquired and universally assented to, can be made instrumental to the gradual formation of a similar body of received doctrine in moral and political science."

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The dignity of the human person is a transcendent value, always recognized as such by those who sincerely search for the truth. Indeed, the whole of human history should be interpreted in the light of this certainty. Every person, created in the image and likeness of God (cf. Gn 1:26 28), is therefore radically oriented towards the Creator, and is constantly in relationship with those possessed of the same dignity. To promote the good of the individual is thus to serve the common good, which is that point where rights and duties converge and reinforce one another.

— Pope John Paul II