Hadley Arkes, "Recasting religious freedom," First things no. 244 (June/July 2014): 47, 51 (45-51), italics mine.
Cf. Horace, Odes III.xxiv.35-36: "quid leges sine moribus vanae proficiunt?", "What do empty laws without morals profit/accomplish?" Reduced to the words in bold, this later became the motto of the University of Pennsylvania.