If there is any principle of the Constitution that more imperatively calls for attachment than any other, it is the principle of free thought — not free thought for those who agree with us but freedom for the thought that we hate.

Oliver Wendell Holmes, Jr. (1841-1935) American jurist, Supreme Court Justice

United States v. Schwimmer, 279 U.S. 644 (1929) [Dissent]
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