Chapter 1 The Conquest of Cartesianism; Chapter 2 Montesquieu’s First Sociology of Knowledge; Chapter 3 The Turn from Rationalism to Realism; Chapter 4 Montesquieu’s Basic Doctrine of Man; Chapter 5 Montesquieu’s Basic Doctrine of Society; Chapter 6 Montesquieu’s Final Sociology of Knowledge: Preliminary Observations; Chapter 7 The Genesis of Ideas: Some Secondary Factors; Chapter 8 The Primary Factors; Chapter 9 The Primary Factors; Chapter 10 The Problem of the Ultimate Determinant; Chapter 11 The Problem of the Mode of Determination; Chapter 12 The Problem of the Degree of Determination; Chapter 13 The Problem of Absolute Truth;