XII. It is commanded that every brother shall set to

work after he has been accepted in our large houses, and has been endowed with the Stone (he receives always a sufficient portion to ensure his life for the space of sixty years). Before beginning he shall recommend himself to God, pledging himself not to use his secret Art to offend Him, to destroy or corrupt the empire, to become a tyrant through ambition or other causes, but always to appear ignorant, invariably asserting that the existence of such secret arts is only proclaimed by charlatans.