Truman by David McCullough:
To no one was Marshall’s presence more reassuring, or inspiriting, than to Truman. “The more I see and talk to him the more certain I am he’s the great one of the age,” Truman wrote not long after Marshall’s swearing in. “Marshall is a tower of strength and common sense,” he noted privately another time. It was admiration such as Truman felt for no other public figure, no one he had ever known, not Roosevelt, not Churchill, not anyone. Nor was he at all hesistant or concened over having such a strong-minded man as his Secretary of State—Marshall, Harriman, Patterson, Forrestal, Lilienthal, Eisenhower, they were all strong-minded. Conceivably, Truman could have worried that someone of such immense reputation as Marshall in so prominent a role would diminish his own standing with the country, that he might suffer by comparison, and Marshall be perceived as more the sort of man who ought to be President. But Truman was neither jealous nor intimidated. He was not so constructed. “I am surely lucky to have his friendship and support,” he wrote, and that was that.