International relations in political theory

Plato : justice and the rule of philosophers

Aristotle : practical wisdom and the best state

Augustine : the foundations of realism

Aquinas : the Catholic vision and the just war

Machiavelli : realpolitik

Hobbes : war and the laws of nature

Rousseau : the impossibility of international harmony

Kant : the idea of perpetual peace

Hegel : the march of world history

Clausewitz : the strategic dimension

Marx : the collapse of international capitalism.