"General: Since my interview with you on the 18th inst. I have felt
that I ought no longer to retain my commission in the Army. I therefore
tender my resignation, which I request you will recommend for
acceptance. It would have been presented at once but for the struggle
it has cost me to separate myself from a service to which I have devoted
the best years of my life, and all the ability I possessed.

"During the whole of that time--more than a quarter of a century--I
have experienced nothing but kindness from my superiors and a most
cordial friendship from my comrades. To no one, General, have I been
as much indebted as to yourself for uniform kindness and consideration,
and it has always been my ardent desire to merit your approbation. I
shall carry tot he grave the most grateful recollections of your kind
consideration, and your name and fame shall always be dear to me.

"Save in the defense of my native State, I never desire again to draw
my sword.

"Be pleased to accept my most earnest wishes for the continuance of
your happiness and prosperity, and believe me most truly yours,

"(Signed)

"R. E. Lee"

His resignation was written the same day.

"Arlington, Washington City P.O., April 20, 1861.