I think people have those innate capacities or they don’t. The crisis draws it out of them. It allows them to see who they really are. And that’s why I chose the title, The Man He Became. I think he was that man before he became sick, but he only discovered who he really was through the ordeal of polio. So it gave him a kind of confidence in his own strength that perhaps no one can have until you’re tested.
Historian James Tobin on FDR’s polio