A Treatise concerning the Use and Abuse of the Marriage Bed

Loose Thoughts, at first, like subterranean Fires,Burn inward, smothering, with unchaste Desires;But getting Vent, to Rage and Fury turn,Burst in Volcanoes, and like Ætna burn;The Heat increases as the Flames aspire,And turns the solid Hills to liquid Fire.So, sensual Flames, when raging in the Soul,First vitiate all the Parts, then fire the Whole ;Burn up the Bright, the Beauteous, the Sublime,And turn our lawful Pleasures into Crime.