"Among the Qabbalists of the Middle Ages were a great number of black magicians who strayed from the noble concepts of the Sepher Yetzirah and became enmeshed in feminism and witchcraft. They sought to substitute magic mirrors, consecrated daggers, and circles spread around pots of coffin nails, for the living of that virtuous life which, without the assistance of complicated rituals or submundane creatures, unfailingly brings man to the state of true individual completion."
- Manly P. Hall