It was hardly to have been expected that the series of measures passed at your last session with the view of healing the sectional differences which had sprung from the slavery and territorial questions should at once have realized their beneficent purpose. All mutual concession in the nature of a compromise must necessarily be unwelcome to men of extreme opinions. And though without such concessions our Constitution could not have been formed, and can not be permanently sustained, yet we have seen them made the subject of bitter controversy in both sections of the Republic. It required many months of discussion and deliberation to secure the concurrence of a majority of Congress in their favor. It would be strange if they had been received with immediate approbation by people and States prejudiced and heated by the exciting controversies of their representatives. I believe those measures to have been required by the circumstances and condition of the country. I believe they were necessary to allay asperities and animosities that were rapidly alienating one section of the country from another and destroying those fraternal sentiments which are the strongest supports of the Constitution. They were adopted in the spirit of conciliation and for the purpose of conciliation. I believe that a great majority of our fellow citizens sympathize in that spirit and that purpose, and in the main approve and are prepared in all respects to sustain these enactments. I can not doubt that the American people, bound together by kindred blood and common traditions, still cherish a paramount regard for the Union of their fathers, and that they are ready to rebuke any attempt to violate its integrity, to disturb the compromises on which it is based, or to resist the laws which have been enacted under its authority. The series of measures to which I have alluded are regarded by me as a settlement in principle and substance--a final settlement of the dangerous and exciting subjects which they embraced. Most of these subjects, indeed, are beyond your reach, as the legislation which disposed of them was in its character final and irrevocable. It may be presumed from the opposition which they all encountered that none of those measures was free from imperfections, but in their mutual dependence and connection they formed a system of compromise the most conciliatory and best for the entire country that could be obtained from conflicting sectional interests and opinions. For this reason I recommend your adherence to the adjustment established by those measures until time and experience shall demonstrate the necessity of further legislation to guard against evasion or abuse.