"Guard against the postures of pretended patriotism."—George Washington, Farewell Address, September 17, 1796.
Even better from the same source:
These considerations speak a persuasive language to every reflecting and virtuous mind, and exhibit the continuance of the Union as a primary object of patriotic desire. Is there a doubt whether a common government can embrace so large a sphere? Let experience solve it. To listen to mere speculation in such a case were criminal. We are authorized to hope that a proper organization of the whole with the auxiliary agency of governments for the respective subdivisions, will afford a happy issue to the experiment. It is well worth a fair and full experiment. With such powerful and obvious motives to union, affecting all parts of our country, while experience shall not have demonstrated its impracticability, there will always be reason to distrust the patriotism of those who in any quarter may endeavor to weaken its bands.