Note 10 — Chapter I · THE MEDIEVAL BACKGROUND
Reading edition
Lanfranc, Elucidarium, lib. ii, p. 18 (in Opera, ed. J. A. Giles). See also Vita Sancti Guidonis (Bollandists’ Acta Sanctorum, September, vol. iv, p. 43): “Mercatura raro aut nunquam ab aliquo diu sine crimine exerceri potuit.”