John H. Livingston, A Dissertation on the Marriage of a Man With His Sister in Law (1816)
“ They can enter fully into the subject — they know what DECENCY requires, and under its influence, will yield to all that has been suggested against commiting incest with a sister in law. Marriage is justly styled "a delicate institution," essentially connected with order and decency. Sweet spring of purest comforts, exuberant source of domestic happiness, it pours its precious blessings wherever it is honoured, and amply pays for protection and defence. But, exposed to insults and susceptible of injuries, it withholds its invaluable benefits from those who suffer it to be abused and polluted. ”
