We deal with a right of privacy older than the Bill of Rights — older than our political parties, older than our school system. Marriage is a coming together for better or for worse, hopefully enduring, and intimate to the degree of being sacred. It is an association that promotes a way of life, not causes; a harmony in living, not political faiths; a bilateral loyalty, not commercial or social projects. Yet it is an association for as noble a purpose as any involved in our prior decisions.
Writing for the court, Griswold v. Connecticut, 381 U.S. 479, 486 (1965). - Judicial opinions