The sentiment of patriotism is invoked, and we are gravely told that the reference to European authority and experience which has occurred in this debate is not consistent with a proper regard to our own country. It is natural, Sir, for us to love our country, and to take pride in its institutions. Whatever is done among us finds special favor, if it be associated in any way with our country. But this sentiment must not become a prejudice. It must not become a malign influence to interrupt the course of truth, or interfere with questions to which it is alien. The subject now before us belongs to science and philanthropy, and I have yet to learn that the prejudices of patriotism have any just foothold in these sacred demesnes. Let us welcome knowledge, wherever it may be found. Hail holy light! from whatever sun or star it may pour upon the eyes, from whatever country or clime it may penetrate the understanding or the heart! Again let me say that our Report and Resolutions stand on impregnable grounds. And now, Mr. President, as I conclude, let me render to you just thanks for the impartiality and amenity with which you have presided over these debates, and may these high qualities be reflected in the future course of our Society. Let us all unite in efforts for increased usefulness, in harmony with one another, and with kindred associations of our own country and of other lands. And if, from the collisions of this discussion there have been any sparks of unkindly feeling, may they all be quenched in the vote which is now to be taken. NOTE. The result of these debates called forth the following letter from M. de Tocqueville, of France, addressed to Mr. Sumner. [TRANSLATION.] MY DEAR SIR,--I have read in the Daily Advertiser of June 1st the account of a meeting of the Boston Prison Discipline Society, in which you proposed a resolution, the effect of which was to declare that this Society ought not to be considered "the pledged advocate" of the Auburn System, or of any other system, and that it should judge all systems without taking sides in advance, and without prejudice. I have since learned, by the same paper, that the Society refused to adopt the resolution. This vote has surprised and pained me. I take a very lively interest in the reform of prisons, and I have always cherished a respectful attachment for the Society, which has, of its own accord, done me the honor to make me one of its members, and which enjoys so just a reputation in the philanthropic world. It is under the influence of these two sentiments that I feel an impulse to write to you.