Thomas Jefferson, letter to William Duane, March 28, 1811:

"The last hope of human liberty in this world rests on us. We ought, for so dear a state to sacrifice every attachment and every enmity. Leave the President free to choose his own coadjutors, to pursue his own measures, and support him and them, even if we think we are wiser than they, honester than they are, or possessing more enlarged information of the state of things. If we move in mass, be it ever so circuitously, we shall attain our object; but if we break into squads, every one pursuing the path he thinks most direct, we become an easy conquest to those who can now barely hold us in check. I repeat again, that we ought not to schismatize on either men or measures. Principles alone can justify that. If we find our government in all its branches rushing headlong, like our predecessors, into the arms of monarchy, if we find them violating our dearest rights, the trial by jury, the freedom of the press, the freedom of opinion, civil or religious, or opening on our peace of mind or personal safety the sluices of terrorism, if we see them raising standing armies, when the absence of all other danger points to these as the sole objects on which they are to be employed, then indeed let us withdraw and call the nation to its tents."

[The Works of Thomas Jefferson in Twelve Volumes. Federal Edition. Collected and Edited by Paul Leicester Ford.]