“Positivism… may be regarded as a secularized form of the systematic theology which had been considered the crown of all the sciences in medieval European universities.”

Political Theology (1922), Ch. 3 : Political Theology

Nicomachus of Gerasa: Introduction to Arithmetic (1926)
Context: All that has by nature, with systematic method, been arranged in the universe, seems both in part and as a whole to have been determined and ordered in accordance with number, by the forethought and the mind of him that created all things; for the pattern was fixed, like a preliminary sketch, by the domination of number preëxistent in the mind of the world-creating God, number conceptual only and immaterial in every way, but at the same time the true and the eternal essence, so that with reference to it, as to an artistic plan, should be created all these things: time, motion, the heavens, the stars, all sorts of revolutions.<!--Book I, Chapter VI

1999: 130
The Social Construction of Reality, 1966

Source: The Light of Day (1900), Ch. III: Science and Theology

Part 2. "Teilhard and the Problems of Today", Ch. 5, pp. 254–255, n. 54
The Eternal Feminine (1968)

Missionaries in India

Telegram (26 April 1945) to Hughe Knatchbull-Hugessen, British Ambassador to Turkey, quoted in Martin Gilbert, Road to Victory: Winston S. Churchill, 1941-1945 (London: Heinemann, 1986), p. 1314
The Second World War (1939–1945)

Mont Saint Michel and Chartres (1904)
Context: p>Where, then,— in what mysterious cave outside of creation — could Man, and his free-will, and his private world of responsibilities and duties, lie hidden? Unless Man was a free agent in a world of his own beyond constraint, the Church was a fraud, and it helped little to add that the State was another. If God was the sole and immediate cause and support of everything in his creation, God was also the cause of its defects, and could not,— being Justice and Goodness in essence,—hold Man responsible for his own omissions. Still less could the State or Church do it in his name.Whatever truth lies in the charge that the schools discussed futile questions by faulty methods, one cannot decently deny that in this case the question was practical and the method vital. Theist or atheist, monist or anarchist must all admit that society and science are equally interested with theology in deciding whether the Universe is one or many, a harmony or a discord. The Church and State asserted that it was a harmony, and that they were its representatives. They say so still. Their claim led to singular but unavoidable conclusions, with which society has struggled for seven hundred years, and is still struggling.</p

There is an abstract rationale of all conduct which is rational at alt, and a rationale of all social relations arising through the organization of rational activity.
Source: "The limitations of scientific method in economics", 1924, p. 127 (2009 edition)