"There is a fundamental difference between separation of church and state and denying the spiritual heritage of this country. Inscribed on the Jefferson Memorial in Washington, D.C. are Jefferson's words, 'The God Who gave us life gave us liberty -- can the liberties of a nation be secure when we have removed a conviction that these liberties are the gift of God?'"

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The mixing of government and religion can be a threat to free government, even if no one is forced to participate.... When the government puts its imprimatur on a particular religion, it conveys a message of exclusion to all those who do not adhere to the favored beliefs. A government cannot be premised on the belief that all persons are created equal when it asserts that God prefers some.

— Harry A. Blackmun