AMEN! I'm inclined, however, to believe that the combination of his heart disease and the loss of Jackson adversely affected his tactical judgment. I'm not always impressed with Lee as a strategist, but as a tactician he was usually on the ball. Sorta like Napoleon :-).
There is a considerable body of evidence to indicate that Lee was haunted by his incomplete victory at Chancellorsville a few weeks earlier. He believed that he had had a chance to destroy the Army of the Potomac and the untimely loss of Jackson prevented that. He may have set out to finish the job at Gettysburg and he badly overreached.