“There is no truth more thoroughly established than that there exists in the economy and course of nature an indissoluble union between virtue and happiness; between duty and advantage; between the genuine maxims of an honest and magnanimous policy and the solid rewards of public prosperity and felicity; since we ought to be no less persuaded that the propitious smiles of Heaven can never be expected on a nation that disregards the eternal rules of order and right which Heaven itself has ordained; and since the preservation of the sacred fire of liberty and the destiny of the republican model of government are justly considered, perhaps, as deeply, as finally, staked on the experiment entrusted to the hands of the American people.” – George Washington, April 30, 1789

“We are not enemies, but friends. We must not be enemies. Though passion may have strained it must not break our bonds of affection. The mystic chords of memory, stretching from every battlefield and patriot grave to every living heart and hearthstone all over this broad land, will yet swell the chorus of the Union, when again touched, as surely they will be, by the better angels of our nature.” – Abraham Lincoln, March 4, 1861

“We have learned lessons – at a fearful cost – and we shall profit by them. We have learned that we cannot live alone, at peace; that our own well-being is dependent on the well-being of other nations far away. We have learned that we must live as men, not as ostriches, nor as dogs in the manger. We have learned to be citizens of the world, members of the human community. We have learned the simple truth, as Emerson said, that “The only way to have a friend is to be one.” We can gain no lasting peace if we approach it with suspicion and mistrust or with fear.” – Franklin Delano Roosevelt, January 20, 1945

“The words I spoke today are not so different from the oath that is taken each time a soldier signs up for duty or an immigrant realizes her dream. My oath is not so different from the pledge we all make to the flag that waves above and that fills our hearts with pride. They are the words of citizens and they represent our greatest hope. You and I, as citizens, have the power to set this country’s course. You and I, as citizens, have the obligation to shape the debates of our time – not only with the votes we cast, but with the voices we lift in defense of our most ancient values and enduring ideals. Let us, each of us, now embrace with solemn duty and awesome joy what is our lasting birthright. With common effort and common purpose, with passion and dedication, let us answer the call of history and carry into an uncertain future that precious light of freedom.” – Barack Hussein Obama, January 20, 2009