Deploying Foucault's argument from the first volume of "The History of Sexuality", Butler claims that any attempt at censorship, legal or otherwise, necessarily propagates the very language it seeks to forbid. As Foucault argues, for example, the strict sexual mores of 19th-century Western Europe did nothing but amplify the discourse of sexuality they sought to control. Extending this argument using Derrida and Lacan, Butler claims that censorship is primitive to language, and that the linguistic "I" is a mere effect of an originary censorship. In this way, Butler questions the possibility of any genuinely oppositional discourse; "If speech depends upon censorship, then the principle that one might seek to oppose is at once the formative principle of oppositional speech".