I think you're talking about George Washington's farewell speech. In this speech, Washington warned against foreign alliances and their influence on domestic affairs and against bitter partisanship in domestic politics. He also called for men to outdo partisanship and serve the common good, emphasizing that the United States should focus on its own interests. He advised friendship and trade with all nations, but discouraged involvement in European wars. Finally, he emphasized the importance of religion, stating that "religion and morality are essential supports" in the government of a republic.
