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.
Franklin Delano Roosevelt (1882-1945) American lawyer, politician, statesman, US President (1933-1945)
Speech (1933-03-04), Inaugural Address, Washington, D. C.
(Source)
See Bacon.