Jefferson’s importance as a political theorist tends to be overshadowed by his success as diplomat and statesman. The practical accomplishments of his forty years in public office often obscure the breadth and consistency of the philosophy behind all of his official conduct, and his tremendous influence in formulating and disseminating the principles on which the modern democratic state rests is too often forgotten. His genius consisted, not so much in the originality of his political ideas, as in his ability to select from the conflicting theories of his day all that could be practically applied, and to transmute a diverse intellectual heritage into a working philosophy of the state. Against the sovereign whose command is law, Jefferson sets up a legal theory seeking justice as well as order, and by which ruler and subject are alike bound. It is a theory which transcends national lines, recognizing that isolation, in any rigorous sense, means stagnation and death, both to the individual and to the state. So when Jefferson asks for “peace, commerce, and honest friendship, with all nations–entangling alliances with none,” only the second phrase is negative, and it means no more than it says. Peace and commerce are both relations external to the individual state; and both presuppose for their maintenance some form of international organization–some system of international law. Both Jefferson’s writings and his official acts testify to his belief that the intercourse of nations must be governed by some body of legal rules.