Magicians & Priests

Sts. Cyprian and Justina

Reading Jonathan Strange & Mr. Norrell by Susanna Clarke, and on page 521 I came across this line:

"There used to be a proverb - quite defunct now - something about priests sowing wheat and magicians sowing rye, all in the same field.⁴

I enjoyed the accompanying footnote:

Footnote regarding heresy and magic.