"The Constitution is a living force..." -President Truman #CivicsForAllOfUS
Channel: US National Archives
Date: 18/09/2023

President Harry Truman's address at the dedication of the new shrine for the Declaration of Independence, Constitution, and the Bill of Rights at the National Archives. 12/15/1952. civics.archives.gov 
https://catalog.archives.gov/id/12063
Full sound recording from the Truman Presidential Library and Museum: https://www.trumanlibrary.gov/soundrecording-records/sr70-50-president-trumans-address-dedication-new-shrine-declaration