Many are the exercises of power reserved to the States wherein a uniformity of proceeding would be advantageous to all. Such are quarantines, health laws, regulations of the press, banking institutions, training militia, etc., etc.
Thomas JeffersonCertainly one of the highest duties of the citizen is a scrupulous obedience to the laws of the nation. But it is not the highest duty.
Thomas JeffersonEvery male citizen of the commonwealth, liable to taxes or to militia duty in any county, shall have a right to vote for representatives for that county to the legislature.
Thomas JeffersonFor 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 Jefferson