Vice

"For a government to declare a vice to be a crime, and to punish it as such, is an attempt to falsify the very nature of things. It is as absurd as it would be to declare truth to be a falsehood, or falsehood a truth."

--Lysander Spooner (1808-1887)
Political theorist, activist, abolitionist
Source: Vices are Not Crimes, A Vindication of Moral Liberty (1875).