Our country is now taking so steady a course as to show by what road it will pass to destruction, to wit: by consolidation of power first, and then corruption, its necessary consequence. The engine of consolidation will be the Federal judiciary; the two other branches the corrupting and corrupted instruments.
Source, in full
Letter, Thomas Jefferson to Nathaniel Macon, 1821: ME 15-341, as quoted in The Assault on Reason, Al Gore, A&C Black (2012, reprint), p. 87 : ISBN 1408835800, 9781408835807, and Federal Jurisdiction, Form #05.018, Sovereignty Education and Defense Ministry (2012)