Richard Nixon actually said...
The Convention, adopted on November 14, 1970, by a vote of 77 to 1 with 8 abstentions at the Sixteenth General Conference of the United Nations Educational, Scientific and Cultural Organization, is a significant effort at multilateral cooperation to help preserve the cultural resources of mankind.
Context
Message to the Senate Transmitting Convention on the Illicit Movement of Cultural Property.
02/01/1972