"He had somehow, with all his modesty, the rare faculty of controlling his superiors as well as his subordinates. He outfaced Stanton, captivated the President, and even compelled acquiescence or silence from that dread source of paralyzing power, the Congressional Committee on the Conduct of the War." -- Union General Joshua Lawrence Chamberlin, hero of Little Round Top at Gettysburg
When hearing Grant referred to as a "Military Accident," with no distinguishing merit, one who had achieved success through a combination of fortunate circumstances, Lee responded by saying, "Sir, your opinion is a very poor compliment to me. We all thought Richmond protected, as it was, by our splendid fortifications and defended by our army of veterans, and could not be taken. Yet Grant turned his face to our capital and never turned it away until we had surrendered. Now, I have carefully searched the military records of both ancient and modern history, and have never found Grant's superior as a general. I doubt his superior can be found in all history." -- General Robert E. Lee, commander of the Army of Northern Virginia
"Do you know Grant? [Longstreet asked of those who were denigrating and mocking Grant's capabilities]. Well, I do. I was in the Corps of Cadets with him at West Point for three years, I was present at his wedding, I served in the same army with him in Mexico, I have observed his methods of warfare in the West, and I believe I know him through and through; and I tell you that we cannot afford to underrate him and the army he now commands." -- Confederate General James "Old Pete" Longstreet (who was the best man at Grant's wedding to Julia Dent)
"There is one West Pointer, I think in Missouri, little known, and whom I hope the northern people will not find out. I mean Sam Grant. I knew him well at the Academy and in Mexico. I should fear him more than any of their officers I have yet heard of. He is not a man of genius, but he is clear-headed, quick and daring." -- Genereal Richard S. Ewell - One of Lee's generals, in a conversation with Lee in 1861
"Dear General: I have watched your movements from the hour you gave me my horse and sword and told me to go home and assist in making a crop.' I have been proud to see the nation do you honor. And now, dear Genl. in this the hour of your tribulation I weep that so brave, so magananimous a soul must suffer as you do .. and be assured that I am not the only ex-Confederate who sends his prayers daily to the Throne of Grace for the Grandest, the noblest, the bravest soldier and the Purist Statesman who ever graced the annals of history ... I am Dear General, Yours Most Affectly, A. M. Arnold, Rockbridge Bath, Va." -- A.M. Arnold, Confederate Veteran in a letter to Grant during his illness