To a clergyman lying under a vow of chastity any act of sex is immoral, but his abhorrence of it naturally increases in proportion as it looks safe and is correspondingly tempting. As a prudent man, he is not much disturbed by incitations which carry their obvious and certain penalties; what shakes him is the enticement bare of any probable secular retribution. Ergo, the worst and damndest indulgence is that which goes unwhipped. So he teaches that it is no sin for a woman to bear a child to a drunken and worthless husband, even though she may believe with sound reason that it will be diseased and miserable all its life, but if she resorts to any mechanical or chemical device, however harmless, to prevent its birth, she is doomed by his penology to roast in Hell forever, along with the assassin of orphans and the scoundrel who forgets his Easter duty.
H. L. Mencken