Franklin Roosevelt actually said...
By virtue of the authority vested in me by sections 2(b) and 10(a) of title I of the National Industrial Recovery Act, approved June 16, 1933, Public, No. 67, Seventy-third Congress, I hereby delegate authority and prescribe rules and regulations necessary for carrying out the purposes of title I of said act.
Context
Executive Order 6439—Delegating Authority Under Section 2(b) and Prescribing Rules and Regulations Under Section 10(a) of...
11/17/1933