Tinker v. Des Moines Independent Community School District · ¶21

It is also relevant that the school authorities did not purport to prohibit the wearing of all symbols of political or controversial significance. The record shows that students in some of the schools wore buttons relating to national political campaigns, and some even wore the Iron Cross, traditionally a symbol of Nazism. The order prohibiting the wearing of armbands did not extend to these. Instead, a particular symbol — black armbands worn to exhibit opposition to this Nation’s involvement in Vietnam — was singled out for prohibition. Clearly, the prohibition of expression of one particular opinion, at least without evidence that it is necessary to avoid material and substantial interference with schoolwork or discipline, is not constitutionally permissible.

U. S. Reports, bound volume
U. S. Reports, volume 393, at 503 (Library of Congress) · transcription: Caselaw Access Project
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