For the power given to Congress by the Constitution does not extend to the internal regulation of the commerce of a State (that is to say, of the commerce between citizen and citizen,) which remain exclusively with its own legislature; but to its external commerce only, that is to say, its commerce with another State, or with foreign nations, or with the Indian tribes.
Thomas JeffersonI see no comfort in outliving one's friends, and remaining a mere monument of the times which are past.
Thomas JeffersonThe precepts of philosophy and of the Hebrew code, laid hold of actions only. (Jesus) pushed his scrutinies into the heart of man, erected his tribunal in the regions of his thoughts, and purified the waters at the fountain head.
Thomas Jefferson[A]lthough a republican government is slow to move, yet when once in motion, its momentum becomes irresistible.
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 Jefferson