The Riddles of Philosophy by Rudolf Steiner. Volume 18 in the collected works (CW).
First part of the Entire Book The Riddles of Philosophy as a zip file.
Second part of the Entire Book The Riddles of Philosophy as a zip file.
1. Chapter 1: Guiding Thoughts on the Method of Presentation
2. Chapter 2: The World Conception of the Greek Thinkers
3. Chapter 3: Thought Life from the Beginning of the Christian Era to John Scotus Erigena
4. Chapter 4: The World Conceptions of the Middle Ages
5. Chapter 5: The World Conceptions of the Modern Age of Thought Evolution
6. Chapter 6: The Age of Kant and Goethe
7. Chapter 7: The Classics of World and Life Conceptions
8. Chapter 8: Reactionary World Conceptions
9. Chapter 9: Radical World Conceptions
Part II
10. Preliminary Remarks to the 1914 Edition
11. Chapter 1: The Struggle Over the Spirit
12. Chapter 2: Darwinism and World Conception
13. Chapter 3: The World As Illusion
14. Chapter 4: Echoes of a Kantian Mode of Conception
15. Chapter 5: World Conceptions of Scientific Factuality
16. Chapter 6: Modern Idealistic World Conceptions
17. Chapter 7: Modern Man and His World Conception
18. Chapter 8: A Brief Outline of an Approach to Anthroposophy