Transcript: The oldest surviving fragment of philosophy dates back to Anaximander in the sixth century BC. Anaximander wrote that the universe was made of a primordial substance and that this primordial substance was infinite in extent.  This is the first known use of the concept of infinity in science.  He also supposed that the primordial substance had no intrinsic color, odor, or weight, that these were all secondary attributes, another strikingly modern idea.  He also wrote about how the universe was subject to the warring opposites of order and chaos.  These words come down to us today.  The Greek word cosmos comes from the word for order, and the word chaos comes from the Greek word meaning disorder or disharmony. To the earliest Greek philosophers the universe was a balance between the forces of order and disorder.