Antisexuality
Some forms of early ascetic Gnosticism held all matter to be evil, and that unnecessary gratifications of the physical senses were to be avoided.  Married couples were encouraged to be celibate. The Skoptsys were a radical sect of the Russian Orthodox Church that practiced castration and amputation of sexual organs.  The Skoptsy believed that Christ had been castrated during his crucifixion, and it was this castration that brought about salvation.