Letter of Resignation from Secretary of State Cordell Hull.
My dear Mr. President:
It is with inexpressible disappointment that I find it necessary, for considerations of health, to retire from public service. I, therefore, with utmost regret, tender herewith my resignation as Secretary of State.
It is a matter of special satisfaction to me that throughout my almost twelve years at the Department of State, our personal relations have been uniformly and invariably agreeable and that, by our joint efforts, many difficult tasks growing out of the foreign relations of this country before and during this war have been brought to partial or full completion; many great questions have been faced successfully; and many forward movements of surpassing importance to friendly relations among Nations have been instituted.
As the war draws to a close there remains a vast area of complex and difficult conditions and problems which must be dealt with in the months and years immediately ahead. It is a supreme tragedy to me personally that I am unable to continue making my full contribution to such great international undertakings as the creation of the postwar peace organization, the solution of the many other problems involved in the promotion of international cooperation, and the final development of a full and complete structure of a world order under law.
When I recover my strength, I shall individually be always at your service in every possible way.
Franklin D. Roosevelt, Letter of Resignation from Secretary of State Cordell Hull. Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/210545