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Struck down with polio at age thirty-eight, his polio not only further shaped his character, and honed what Oliver Wendell Holmes called “his first class temperament.” but perhaps it also taught him skills that he would need as he taught the nation to deal with and recover from the twin crises of war and depression.
James Tobin captures this essence of Roosevelt in The Man He Became: How FDR Defied Polio to Win the Presidency
My conversation with James Tobin: