The West inherited Classical civilization more fully than Islam or Orthodoxy did.

Evidence

The Classical legacy. As a third generation civilization, the West inherited much from previous civilizations, including most notably Classical civilization. The legacies of the West from Classical civilization are many, including Greek philosophy and rationalism, Roman law, Latin, and Christianity. Islamic and Orthodox civilizations also inherited from Classical civilization but nowhere near to the same degree the West did. — Samuel P. Huntington, The Clash of Civilizations and the…, 185