A Beginner's History of Philosophy, Vol. 2: Modern Philosophy
CHAPTER I. THE CHARACTERISTICS AND DIVISIONS OF THE MODERN
PERIOD 1 THE DIFFICULTY IN THE STUDY OF MODERN PHILOSOPHY 1 THE PERIODS OF MODERN PHILOSOPHY 2 THE CAUSES OF THE DECAY OF THE CIVILIZATION OF THE MIDDLE AGES 4 (a) _The Internal Causes_ 4 (1) The Intellectual Methods were Self-Destructive 4 (2) The Standard of Truth became a Double Standard 5 (3) The Development of Mysticism 5 (4) The Doctrine of Nominalism 5 (b) _The External Causes_ 6