1. First Period—Early Influences, [169]

2. Second Period—Traveler and Collector, [171]

3. Third Period—Administrator of the Lyceum, [172]

The Writings of Aristotle, [173]

1. The Popular Writings, published by Aristotle himself, [174]

2. The Compilations, [175]

3. The Didactic Writings, [175]

Aristotle’s Starting-Point, [176]

The Fundamental Principle in Aristotle’s Philosophy, [177]

Aristotle’s Logic, [180]