Dr. Johnson Story (Corrected)

From Samuel Johnson: A Biography by John Wain

"The artist Hogarth, happening to call on Richardson at a time when Johnson wqs also visiting him, was shown into a room where Johnson was standing by the window, absorbed in his thoughts; as usual when in this state, he was twitching, rolling his frame about, and making strange sotte voce noises, and Hogarth assumed that this was a poor idiot to whom the charitable Richardson was giving shelter. When their host arrived, the 'idiot' moved forward and began to speak, so forcefully and eloquently that the thought crossed Hogarth's startled mind that he was witnessing a case of divine inspiration of the insane."