The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people.
Per Legal Information Institute at Cornell Law School –
The Ninth Amendment was James Madison’s attempt to ensure that the Bill of Rights was not seen as granting to the people of the United States only the specific rights it addressed. In recent years, some have interpreted it as affirming the existence of such “unenumerated” rights outside those expressly protected by the Bill of Rights. Learn more…