From Grant’s classic memoirs, completed shortly before his death:
I had known General Lee in the old army, and had served with him in the Mexican War; but did not suppose, owing to the difference in our age and rank, that he would remember me, while I would more naturally remember him distinctly, because he was the chief of staff of General Scott in the Mexican War.
When I had left camp that morning I had not expected so soon the result that was then taking place, and consequently was in rough garb. I was without a sword, as I usually was when on horseback on the field, and wore a soldier's blouse for a coat, with the shoulder straps of my rank to indicate to the army who I was. When I went into the house I found General Lee. We greeted each other, and after shaking hands took our seats. I had my staff with me, a good portion of whom were in the room during the whole of the interview.
What General Lee's feelings were I do not know. As he was a man of much dignity, with an impassible face, it was impossible to say whether he felt inwardly glad that the end had finally come, or felt sad over the result, and was too manly to show it. Whatever his feelings, they were entirely concealed from my observation; but my own feelings, which had been quite jubilant on the receipt of his letter, were sad and depressed. I felt like anything rather than rejoicing at the downfall of a foe who had fought so long and valiantly, and had suffered so much for a cause, though that cause was, I believe, one of the worst for which a people ever fought, and one for which there was the least excuse. I do not question, however, the sincerity of the great mass of those who were opposed to us.
General Lee was dressed in a full uniform which was entirely new, and was wearing a sword of considerable value, very likely the sword which had been presented by the State of Virginia; at all events, it was an entirely different sword from the one that would ordinarily be worn in the field. In my rough traveling suit, the uniform of a private with the straps of a lieutenant-general, I must have contrasted very strangely with a man so handsomely dressed, six feet high and of faultless form. But this was not a matter that I thought of until afterwards.
We soon fell into a conversation about old army times. He remarked that he remembered me very well in the old army; and I told him that as a matter of course I remembered him perfectly, but from the difference in our rank and years (there being about sixteen years' difference in our ages), I had thought it very likely that I had not attracted his attention sufficiently to be remembered by him after such a long interval. Our conversation grew so pleasant that I almost forgot the object of our meeting. After the conversation had run on in this style for some time, General Lee called my attention to the object of our meeting, and said that he had asked for this interview for the purpose of getting from me the terms I proposed to give his army. I said that I meant merely that his army should lay down their arms, not to take them up again during the continuance of the war unless duly and properly exchanged. He said that he had so understood my letter.
. . . .
I determined to return to Washington at once, with a view to putting a stop to the purchase of supplies, and what I now deemed other useless outlay of money. Before leaving, however, I thought I would like to see General Lee again; so next morning I rode out beyond our lines towards his headquarters, preceded by a bugler and a staff-officer carrying a white flag.
Lee soon mounted his horse, seeing who it was, and met me. We had there between the lines, sitting on horseback, a very pleasant conversation of over half an hour, in the course of which Lee said to me that the South was a big country and that we might have to march over it three or four times before the war entirely ended, but that we would now be able to do it as they could no longer resist us. He expressed it as his earnest hope, however, that we would not be called upon to cause more loss and sacrifice of life; but he could not foretell the result. I then suggested to General Lee that there was not a man in the Confederacy whose influence with the soldiery and the whole people was as great as his, and that if he would now advise the surrender of all the armies I had no doubt his advice would be followed with alacrity.