One opinion I must not fail to express; and this is that _the cabinet ought to be a unit_. I may say that this is not merely an opinion of mine, but a strong and deep conviction. It is as clear to my mind as any mathematical demonstration. Without unity no cabinet can be successful. General Jackson, penetrating as he was, did not discover this truth until compelled to dissolve his first cabinet on account of its heterogeneous and discordant materials. I undertake to predict that whoever may be the President, if he disregards this principle in the formation of his cabinet, he will have committed a fatal mistake. He who attempts to conciliate opposing factions by placing ardent and embittered representatives of each in his cabinet, will discover that he has only infused into these factions new vigor and power for mischief. Having other objects in view, distinct from the success and glory of the administration, they will be employed in strengthening the factions to which they belong, and in creating unfortunate divisions in Congress and throughout the country. It was a regard to this vital principle of unity in the formation of his cabinet which rendered Mr. Polk’s administration so successful. We were all personal and political friends, and worked together in harmony. However various our views might have been and often were upon any particular subject when entering the cabinet council, after mutual consultation and free discussion we never failed to agree at last, except on a very few questions, and on these the world never knew that we had differed. I have made these suggestions without a single selfish object. My purpose is to retire gradually, if possible, and gracefully from any active participation in public affairs, and to devote my time to do historical justice to the administration of Mr. Polk, as well as to myself, before the tribunal of posterity. I feel, notwithstanding, a deep and intense interest in the lasting triumph of the good old cause of Democracy and in that of its chosen standard bearer, to whose success I devoted myself with a hearty good will.