If those persons, who fancy themselves gifted with both the power and the right to define and punish other men's vices, would but turn their thoughts inwardly, they would probably find that they have a great work to do at home; and that, when that shall have been completed, they will be little disposed to do more towards correcting the vices of others, than simply to give to others the results of their experience and observation.
Lysander Spooner (2006). “Vices Are Not Crimes: A Vindication of Moral Liberty”, p.16, ReadHowYouWant.com