Our patriotism comes straight from the Romans. This is why French children are encouraged to seek inspiration for it in Corneille. It is a pagan virtue, if these two words are compatible. The word pagan, when applied to Rome, early possesses the significance charged with horror which the early Christian controversialists gave it. The Romans really were an atheistic and idolatrous people; not idolatrous with regard to images made of stone or bronze, but idolatrous with regard to themselves. It is this idolatry of self which they have bequeathed to us in the form of patriotism.

p. 220, also in The Need for Roots : prelude towards a declaration of duties towards mankind (1952) - Prelude to Politics (1943)