This, in the Platonic school, was how the end of the Middle Ages looked.

All his older philosophical writings deal with the problem of certainty, He wanted to overcome the skeptical philosophy; he wanted certainty. This is another element in his thinking. It is very important, again, because it presupposed the negative end of the Greek development. The Greek heroic attempt to build a world on the basis of philosophical reason came to an end in terms of a catastrophe which we usually call skepticism. This was the end of the Greek thinking. The end of the Greek development to create a new world of thinking in terms of reason was skepticism.