Pacem in Terris §36

³⁶ And so, dearest sons and brothers, we must think of human society as being primarily a spiritual reality. By its means enlightened men can share their knowledge of the truth, can claim their rights and fulfill their duties, receive encouragement in their aspirations for the goods of the spirit, share their enjoyment of all the wholesome pleasures of the world, and strive continually to pass on to others all that is best in themselves and to make their own the spiritual riches of others. It is these spiritual values which exert a guiding influence on culture, economics, social institutions, political movements and forms, laws, and all the other components which go to make up the external community of men and its continual development.