American Booksellers Assoc. v. Hudnut--Judge Frank Easterbrook
The ordinance discriminates on the ground of the content of the speech. Speech treating women in the approved way—in sexual encounters “premised on equality”—is lawful no matter how sexually explicit. Speech treating women in the disapproved way—as submissive in matters sexual or as enjoying humiliation—is unlawful no matter how significant the literary, artistic, or political qualities of the work taken as a whole. The Constitution forbids the state to declare one perspective right and silence opponents