On March 4, 1933, the newly elected president of the United States delivered his inaugural address to the nation. Four sentences into that address, Franklin Roosevelt uttered the words that have lived long beyond his four-term presidency: “So, first of all, let me assert my firm belief that the only thing we have to fear is fear itself—nameless, unreasoning, unjustified terror which paralyzes needed efforts to convert retreat into advance.” So spoke the nation’s leader in that dark hour of economic despair.