The Provincial Letters

You always fly from the one extreme to the other, replied the monk: prithee avoid that habit. For, just to show you that we are far from permitting everything, let me tell you that we never suffer such a thing as a formal intention to sin, with the sole design of sinning; and if any person whatever should persist in having no other end but evil in the evil that he does, we break with him at once: such conduct is diabolical.