[The] Bank of the United States... is one of the most deadly hostility existing, against the principles and form of our Constitution... An institution like this, penetrating by its branches every part of the Union, acting by command and in phalanx, may, in a critical moment, upset the government. I deem no government safe which is under the vassalage of any self-constituted authorities, or any other authority than that of the nation, or its regular functionaries. What an obstruction could not this bank of the United States, with all its branch banks, be in time of war! It might dictate to us the peace we should accept, or withdraw its aids. Ought we then to give further growth to an institution so powerful, so hostile?

Letter to Albert Gallatin, 1803. ME 10:437. - Posthumous publications - On financial matters