To Joseph Hooker 
General. Washington, January 26, 1863.
I have placed you at the head of the Army of the Potomac. Of course I have done this upon what appear to me to be sufficient reasons. And yet I think it best for you to know that there are some things in regard to which, I am not quite satisfied with you. I believe you to be a brave and a skilful soldier, which, of course, I like. I also believe you do not mix politics with your profession, in which you are right. You have confidence in yourself, which is a valuable, if not an indispensable quality. You are ambitious, which, within reasonable bounds, does good rather than harm. But I think that during Gen. Burnside's command of the Army, you have taken counsel of your ambition, and thwarted him as much as you could, in which you did a great wrong to the country, and to a most meritorious and honorable brother officer. I have heard, in such way as to believe it, of your recently saying that both the Army and the Government needed a Dictator. Of course it was not for this, but in spite of it, that I have given you the command. Only those generals who gain successes, can set up dictators. What I now ask of you is military success, and I will riskPage 79 the dictatorship. The government will support you to the utmost of it's ability, which is neither more nor less than it has done and will do for all commanders. I much fear that the spirit which you have aided to infuse into the Army, of criticising their Commander, and withholding confidence from him, will now turn upon you. I shall assist you as far as I can, to put it down. Neither you, nor Napoleon, if he were alive again, could get any good out of an army, while such a spirit prevails in it.
And now, beware of rashness. Beware of rashness, but with energy, and sleepless vigilance, go forward, and give us victories.
Yours very truly A. LINCOLN
 ALS, owned by Alfred W. Stern, Chicago, Illinois. Hooker was called to the White House for an interview, and this letter presumably was handed to him at that time. It remained unknown until after Hooker's death in 1879, and the circumstances of the interview, as well as Hooker's reception of the president's views, have not been adequately recorded. All accounts known to the editors reveal an abundance of conjecture and rationalized recollection after the fact.