Fibrous tunic of eyeball. From Wikipedia, the free encyclopedia. The sclera and cornea form the fibrous tunic of the bulb of the eye; the sclera is opaque, and constitutes the posterior five-sixths of the tunic; the cornea is transparent, and forms the anterior sixth.The term corneosclera is also used to describe the sclera and cornea together.ibrous tunic of eyeball. From Wikipedia, the free encyclopedia. The sclera and cornea form the fibrous tunic of the bulb of the eye; the sclera is opaque, and constitutes the posterior five-sixths of the tunic; the cornea is transparent, and forms the anterior sixth.
The philosophy as well as the religion of the Greeks found its first expression in poetry, philosophical speculation, properly so called, being preceded by the effort of the imagination to picture to itself the origin and the evolution of the universe.
Raphael 's School of Athens. Ancient Greek philosophy arose in the 6th century BCE and continued throughout the Hellenistic period and the period in which Ancient Greece was part of the Roman Empire.It dealt with a wide variety of subjects, including political philosophy, ethics, metaphysics, ontology, logic, biology, rhetoric, and aesthetics.ome claim that Greek philosophy, in turn, was influenced by the older wisdom literature and mythological cosmogonies of the ancient Near East.