"Few casual acquaintances, knowing the gentle yet unbending character of Robert E. Lee in performance of his duties, could guess the intense struggle that this valiant hero of the War Between the States had waged with himself at the outset of those hostilities. Lee, a professional soldier of the highest attainments, had been suggested as commander of the United States forces. In a tumult of feeling he had refused command of the Federal Army and resigned his commission for "I cannot raise my hand against my birthplace..." so setting himself free to serve his native Virginia."
January 1, 1970
https://en.wikiquote.org/wiki/Robert_E._Lee