No two men now live, fellow-citizens, perhaps it may be doubted whether any two men have ever lived in one age, who, more than those we now commemorate, have impressed on mankind their own sentiments in regard to politics and government, infused their own opinions more deeply into the opinions of others, or given a more lasting direction to the current of human thought. Their work doth not perish with them. The tree which they assisted to plant will flourish, although they water it and protect it no longer; for it has struck its roots deep, it has sent them to the very centre; no storm, not of force to burst the orb, can overturn it; its branches spread wide; they stretch their protecting arms broader and broader, and its top is destined to reach the heavens. We are not deceived. There is no delusion here. No age will come in which the American Revolution will appear less than it is, one of the greatest events in human history. No age will come in which it shall cease to be seen and felt, on either continent, that a mighty step, a great advance, not only in American affairs, but in human affairs, was made on the 4th of July, 1776. And no age will come, we trust, so ignorant or so unjust as not to see and acknowledge the efficient agency of those we now honor in producing that momentous event. We are not assembled, therefore, fellow-citizens, as men overwhelmed with calamity by the sudden disruption of the ties of friendship or affection, or as in despair for the republic by the untimely blighting of its hopes. Death has not surprised us by an unseasonable blow. We have, indeed, seen the tomb close, but it has closed only over mature years, over long-protracted public service, over the weakness of age, and over life itself only when the ends of living had been fulfilled. These suns, as they rose slowly and steadily, amidst clouds and storms, in their ascendant, so they have not rushed from their meridian to sink suddenly in the west. Like the mildness, the serenity, the continuing benignity of a summer's day, they have gone down with slow-descending, grateful, long-lingering light; and now that they are beyond the visible margin of the world, good omens cheer us from "the bright track of their fiery car"! [Sidenote: Their public services.] The occasion, fellow-citizens, requires some account of the lives and services of John Adams and Thomas Jefferson. This duty must necessarily be performed with great brevity, and in the discharge of it I shall be obliged to confine myself, principally, to those parts of their history and character which belonged to them as public men. [Sidenote: Adams the chief advocate of the Declaration of Independence.] [Sidenote: His education.]