But, you may ask, if the two departments [i.e., federal and state] should claim each the same subject of power, where is the common umpire to decide ultimately between them? In cases of little importance or urgency, the prudence of both parties will keep them aloof from the questionable ground; but if it can neither be avoided nor compromised, a convention of the States must be called to ascribe the doubtful power to that department which they may think best.
Thomas JeffersonI do verily believe that if the principle were to prevail of a common law being in force in the United States (which principle possesses the general government at once of all the powers of the state governments, and reduces us to a single consolidated government), it would become the most corrupt government on the earth.
Thomas JeffersonThe attempt of Lavoisier to reform chemical nomenclature is premature. One single experiment may destroy the whole filiation of his terms; and his string of sulphates, sulphites, and sulphures, may have served no end than to have retarded the progress of science by a jargon, from the confusion of which time will be requisite to extricate us.
Thomas JeffersonSelf-love . . . is the sole antagonist of virtue, leading us constantly by our propensities to self-gratification in violation of our moral duties to others.
Thomas JeffersonThe States should be watchful to note every material usurpation on their rights; to denounce them as they occur in the most peremptory terms; to protest against them as wrongs to which our present submission shall be considered, not as acknowledgments or precedents of rights, but as a temporary yielding to the lesser evil, until their accumulation shall overweigh that of separation.
Thomas Jefferson