A Superior Language

Why did the Greeks never accept Latin as their language? They saw their language as superior: 

“Greek is the most pleasant language and the most fitting for humans. If you observe the words used by other peoples in their languages, you will see that some closely resemble the wailing of pigs, others the sound of frogs, others the call of the woodpecker.” -Galen of Pergamon

Source - The Children of Athena: Greek Intellectuals in the Age of Rome: 150 BC-400 AD