" Washington’s Farewell Address consists of a series of warnings about the danger of disunion. The North and the South, the East and the West, ought not to consider their interests separate or competing, Washington urged: “your union ought to be considered as a main prop of your liberty.” Parties, he warned, were the “worst enemy” of every government, agitating “the community with ill-founded jealousies and false alarms,” kindling “the animosity of one part against another,” and even fomenting “riot and insurrection. "

― Jill Lepore , These Truths: A History of the United States