The true Christian does not renounce the activities of this life, he does not stunt his natural faculties; but he develops and perfects them, by coordinating them with the supernatural. He thus ennobles what is merely natural in life and secures for it new strength in the material and temporal order, no less then in the spiritual and eternal.
This fact is proved by the whole history of Christianity and its institutions, which is nothing else but the history of true civilization and progress up to the present day. It stands out conspicuously in the lives of the numerous Saints, whom the Church, and she alone, produces, in whom is perfectly realized the purpose of Christian education, and who have in every way ennobled and benefited human society. Indeed, the Saints have ever been, are, and ever will be the greatest benefactors of society, and perfect models for every class and profession, for every state and condition of life, from the simple and uncultured peasant to the master of sciences and letters, from the humble artisan to the commander of armies, from the father of a family to the ruler of peoples and nations, from simple maidens and matrons of the domestic hearth to queens and empresses. What shall we say of the immense work which has been accomplished even for the temporal well-being of men by missionaries of the Gospel, who have brought and still bring to barbarous tribes the benefits of civilization together with the light of the Faith? What of the founders of so many social and charitable institutions, of the vast numbers of saintly educators, men and women, who have perpetuated and multiplied their life work, by leaving after them prolific institutions of Christian education, in aid of families and for the inestimable advantage of nations? – from Divini Illius Magistri (1929)