As to the future peace and harmony of the Union, it is of the highest importance that the people lately in rebellion be not permitted to build up another "peculiar institution" whose spirit is in conflict with the fundamental principles of our political system; for as long as they cherish interests peculiar to them in preference to those they have in common with the rest of the American people, their loyalty to the Union will always be uncertain. I desire not to be understood as saying that there are no well-meaning men among those who were compromised in the rebellion. There are many, but neither their number nor their influence is strong enough to control the manifest tendency of the popular spirit. There are great reasons for hope that a determined policy on the part of the national government will produce innumerable and valuable conversions. This consideration counsels lenity as to persons, such as is demanded by the humane and enlightened spirit of our times, and vigor and firmness in the carrying out of principles, such as is demanded by the national sense of justice and the exigencies of our situation. In submitting this report I desire to say that I have conscientiously endeavored to see things as they were, and to represent them as I saw them: I have been careful not to use stronger language than was warranted by the thoughts I intended to express. A comparison of the tenor of the annexed documents with that of my report, will convince you that I have studiously avoided overstatements. Certain legislative attempts at present made in the south, and especially in South Carolina, seem to be more than justifying the apprehensions I have expressed. Conscious though I am of having used my best endeavors to draw, from what I saw and learned, correct general conclusions, yet I am far from placing too great a trust in my own judgment, when interests of such magnitude are at stake. I know that this report is incomplete, although as complete as an observation of a few months could enable me to make it. Additional facts might be elicited, calculated to throw new light upon the subject. Although I see no reason for believing that things have changed for the better since I left for the south, yet such may be the case. Admitting all these possibilities, I would entreat you to take no irretraceable step towards relieving the States lately in rebellion from all national control, until such favorable changes are clearly and unmistakably ascertained.