This I did that to men of learning and men deeply engaged in the study of magic, it might, by the Grace of God, be in some degree intelligible, while on the oth

This I did that to men of learning and men deeply engaged in the study of magic, it might, by the Grace of God, be in some degree intelligible, while on the other hand, to the thick-skinned turnip-eaters (imperitis Rapophagis) it might for all time remain a hidden secret, and be to their dull intellects a sealed book forever. I initially thought imperitis Rapophagis was simply a knock to the uneducated commoners. Then I read that the turnip is used as an emblem (charge) in the shield (escutcheon) of various coat of arms of prominent Austrian families. One particular family would be the Keutschach family, of whom Leonhard von Keutschach was Prince-Archbishop of Salzburg during Johannes Trithemius time. It's a stretch, but I wonder if Trithemius was merely being nationalistic rather than discriminatory?