Tony Burns

Joseph Dietzgen (1828-1888) had an important role in the history of Marxism. One reason for this is that he coined the phrase "dialectical materialism" — the hallmark of "orthodox" Marxism. Another reason is that at the beginning of the 20th century, in the absence of Marx's early writings, humanist critics of "orthodox" Marxism like Anton Pannekoek appealed to Dietzgen. An understanding of Dietzgen's thought sheds new light on our understanding of "dialectical materialism" and on the debate between "orthodox" and "Hegelian" Marxists.

This article focuses on the history of the concept of natural law and the role which Aristotle, and especially his Rhetoric, has to play within it. It is sometimes suggested that the origins of the concept of law are to be located in the writings of Plato and Aristotle in the fourth century BCE. The article argues that there is evidence both in Aristotle's Politics and in his Rhetoric to support the view that this is not the case. In these texts Aristotle suggests that the origins of the concept of natural law lie in the writings of the Sophists in the fifth century, some of whom used natural law arguments to question the legitimacy of slavery.