Grayned v. City of Rockford

What later courts said

• concluding that, although the First Amendment protected wearing a jacket saying "fuck the draft," Cohen v. California, 403 U.S. 15, 91 S.Ct. 1780, 29 L.Ed.2d 284 (1971 — Heather Wallace, a Minor, by Her Mother and Next Friend, Phyllis Wallace v. The Batavia School District 101, a Municipal Corporation, and James Cliffe (1995)
• holding that the phrase “tends to disturb” the peace in a city noise ordinance was not unconstitutionally vague — Roark & Hardee L.P. v. City of Austin (2005)
• holding that a statute’s words, even when “marked by flexibility and reasonable breadth, rather than meticulous specificity,” are clear based on “what the ordinance as a whole prohibits” — United States v. David Bronstein (2017)

Each line is a later court’s own words about this case, not a summary. Read the opinion before relying on it.