On March 4, 1933, FDR delivered one of the most quoted affirmations in the history of American political rhetoric:
This is preeminently the time to speak the truth, the whole truth, frankly and boldly. Nor need we shrink from honestly facing conditions in our country today. This great Nation will endure, as it has endured, will revive and will prosper.
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. In every dark hour of our national life, a leadership of frankness and of vigor has met with that understanding and support of the people themselves which is essential to victory. And I am convinced that you will again give that support to leadership in these critical days.
Read the full text: Franklin D. Roosevelt’s First Inaugural Address.