If men believe that they must eat meat because it is necessary to life, let them at least first remove the blood from it, as the first Bishop of the earliest Christian church, St. James, ruled to be a Christian duty, and as Moses, wise and powerful leader of those who escaped from Egyptian slavery, ruled to be a Hebrew duty. In this way they will reduce their chance of physical sickness and improve their chances of moral progress. Those who must have further authority for this bloodless diet from a Biblical text may consult their Genesis, I:29. Not for nothing is it that so many rites of black magic call for the use of blood, a sacrificial offering fit only for the dark principle of the universe but not for the maintenance of the human body. Still worse is it for the purpose of such maintenance when the blood is permeated with psychic horror, fear, and anguish generated during first the waiting period at the slaughterhouse and, more intensely, at the actual bloodstained spot itself.
-- Perspectives > Chapter 5: The Body > # 17