The chief reason for the lack of intelligibility in a course in the history of political thought is the absence of any standard by which the great writers in the field may justly be compared. The usual course in the history of political thought is thoroughly historical and scrupulously indifferent to philosophical analysis; at best, a semblance of comparative analysis is achieved by simply telling the student that different needs of different periods suggest different and equally valid theoretical constructions. The question of natural law, for example, is handled in something like the following fashion. The Aristotelian notion of natural law is no sooner inadequately in the mind of the student than it fails to survive the downfall of the Greek city states. The student is told that Aristotle's notion of natural law restricted his vision and blinded him to the inevitable growth of the empire of Philip, his own student. The Stoics, whose views were perfected by Cicero, held to a notion of natural law much more in keeping with the needs of a world civilization. The Church adopted the Stoic conception of natural law. Subsequently, after the writings of Aristotle had been discovered, St. Thomas Aquinas wedded natural law to the law of the Church. The Renaissance and Reformation liberated men's minds from the shackles of Mediaeval Scholasticism. The concept of natural law came gradually to be abandoned; it is already repudiated in the writings of William of Occam and Marsilius of Padua, and its disappearance is complete in Machiavelli. Accustomed to the tradition of 1066 and All That, the student gathers that this disappearance was “a good thing.” In the eighteenth century, there is a revival of natural law.
