" Perhaps the deepest reason for Coolidge’s recent obscurity is that the thirtieth president spoke a different economic language from ours. He did not say “money supply”; he said “credit.” He did not say “the federal government”; he said “the national government.” He did not say “private sector”; he said “commerce.” He did not say “savings”; he said “thrift” or “economy.” Indeed, he especially cherished the word “economy” because it came from the Greek for "

― Amity Shlaes , Coolidge