Perception of the Nature of Thought

I should like to give you an example of something where you can still recognise the Sun-part that is active, although attention can only be directed to it in a veiled way. Those of you who have acquainted yourselves with the new edition of my book, Riddles of Philosophy in Outline will have found that four periods in the development of Philosophy are distinguished. I have called the first period “The World-conceptions of the Greek Thinkers”. This lasted from 800 B.C.—in round numbers—or 600 B.C. to the birth of Christ, i.e. into the age of the origin of Christianity. A second period lasted from the rise of Christianity to about 800 – 900 A.D. up to the time of John Scotus Erigena. Then came a third period which I have called “the World-conception of the Middle Ages”, and which lasted from 800, 900 A.D. to 1600 A.D. And then there is the forth period up to our own time; we are just in this period. Eight-hundred year periods have been assigned to the history of philosophy, presented in such a way as was possible in a book meant for a public still quite unacquainted with Spiritual Science.