It is this right, the right to err politically, which keeps us strong as a Nation. For no number of laws against communism can have as much effect as the personal conviction which comes from having heard its arguments and rejected them, or from having once accepted its tenets and later recognized their worthlessness.

Hugo Black (1886-1971) American politician and jurist, US Supreme Court Justice (1937-71)

Barenblatt v. United States, 360 U.S. 109, 144 (1959) [dissent]
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