HCR on George C Marshall commencement address at Harvard on 5 June 1947 https://heathercoxrichardson.substack.com/p/june-4-2022?s=r
One clear description of "liberal democracy":
With a clear ideological line dividing the USSR and Europe, Europeans, Americans, and their allies coalesced around a concept of government based on equality before the law, secularism, civil rights, economic and political freedom, and a market economy: the tenets of liberal democracy. As Otto Zausmer, who had worked for the U.S. Office of War Information to swing Americans behind the war, put it in 1955: “America’s gift to the world is not money, but the Democratic idea, democracy.”