In his vote for the Mexican War Mr. Winthrop was not a Whig. He then left the party: for surely the party is not where numbers prevail, but where its principles are recognized. The true Whigs are the valiant minority of _fourteen_. Once in Roman history, the vestal fire, the archives, the sacred volumes of the Republic, were in the custody of a single individual, in a humble vehicle, fleeing from the burning city. With him was the life of the Republic. So in that small minority was the life of the Whig party, with its principles and its sacred fire. The true Whig ground, the only ground consistent with professed loyalty to the sentiment of duty, is uncompromising opposition to the war, wheresoever and howsoever opposition may be made. Expecting right from Mexico, we must begin by doing right. We are aggressors, and must cease to be so. This is the proper course, having its foundations in immutable laws. Let me repeat, that our country must do as an individual in like circumstances. For, though politicians may disown it, there is but one rule for nations and for individuals. If any one of you, fellow-citizens, finding yourself in dispute with a neighbor, had unfortunately felled him to earth, but, with returning reason, discovered that you were wrong, what would you do? Of course, cease instantly from _wrong-doing_. You would help your neighbor to his feet, and with awakened benevolence soothe his wounded nature. Precisely so must our country do now. This can be only by the withdrawal of our forces. Peace would then follow. The very response sent to the Roman Senate by a province of Italy might be repeated by the Mexicans: "The Romans, having preferred _justice_ to _conquest_, have taught us to be satisfied with submission instead of liberty." That I may not found these conclusions upon general principles only, I would invoke the example of English Whigs, Chatham, Camden, Burke, Fox, and Sheridan, in opposition to the war of our Revolution,--denouncing it at the outset as unjust, and ever, during its whole progress, declaring their condemnation of it,--voting against supplies for its prosecution, and against thanks for the military services by which it was waged. Holding their example as of the highest practical authority on the present question, and as particularly fit to be regarded by all professing to be Whigs in America, I make no apology for introducing the authentic evidence which places it beyond doubt. This is to be found in the volumes of the Parliamentary Debates. I am not aware that it has ever before been applied to the present discussion, although it is in every word especially applicable.