As products of the split between man’s soul and body, there are two kinds of
teachers of the Morality of Death: the mystics of spirit and the mystics of
muscle, whom you call the spiritualists and the materialists, those who believe
in consciousness without existence and those who believe in existence without
consciousness. Both demand the surrender of your mind, one to their
revelations, the other to their reflexes. No matter how loudly they posture in
the roles of irreconcilable antagonists, their moral codes are alike, and so
are their aims: in matter—the enslavement of man’s body, in spirit—the
destruction of his mind.