Rod Dreher, The Benedict Option
(New York: Sentinel, 2017), p. 17:
Our barbarians have exchanged the animal pelts and spears of the past for designer suits and smartphones.
Although I'm not a professor, I usually do try to follow "Common Rules of the Professors of Higher Faculties," § 8, Ratio Studiorum
(tr. Allan P. Farrell):
It scarcely becomes the dignity of a professor to cite an authority whose works he himself has not read.
I confess that I haven't read Dreher's book, except for excerpts in reviews.