I think that no language is better than another. Every language is precious because it helped the people who spoke it to read, to write, to communicate, to learn, to be educated, to create culture.
because the Byzantines preferred the Greek language
they aren't. Greek was first and then the Roman empire basically copied them and changed there names. the reason they might appear as more important or anything of the sort is because the Roman empire stretched a lot farther than the greek empires did and it lasted longer in age. Romans had a lot more time to spread there beliefs
Greek was the language of the well-educated and, well, the Greek people, too. The Roman soldiers, officers, and Roman people spoke Latin. This would have been the main, legal language. The Jewish people, which included Jesus the Christ, spoke Aramaic. Since there were more Jewish people than Romans, you could also say that Aramic was the main language. Some people, especially religious leaders spoke some Hebrew.
No, the Greeks spoke, and still speak, Greek, though many of them probably knew Latin in ancient times. Since Greece was the country of so many philosophers and artists, it was important for educated Romans to speak Greek (and not the other way around).
Greece and their language was being absorbed into the Roman Empire. The Greeks were much more philosophically oriented than the Romans.
how do you know that one language is not better than another
Greek was the language of the eastern parts of the Roman Empire, with the exception of the Palestinian Jews, who steadfastly stayed with Aramaic, the lingua franca of the old Persian Empire. All the New Testament authors were Greek speakers and they wrote for a Greek-speaking audience. Even Paul was a diaspora Jew, rather than a Palestinian Jew, and so would have been at home writing in Greek.
no not necessarily actually the Romans improved the greek way of life.
The Roman number is better than the vitamin.
No language is better or worse than any other language.
The Byzantine Empire was the eastern part of the Roman Empire which continued to exist for nearly 1,000 years after the fall of the western part of this empire. The educated elites of part of the empire spoke Greek because before its conquest by Rome it had been ruled by Greek states. After the fall of the western part of the empire, this part lost its ties with Rome and with the Latin language. It became increasingly Greek in character and language. It became more so when it lost most of its non-Greek territories due to invasions by the Arabs and the Slavs.
Yes, the Romans were actually better than other foreign invaders of Egypt. Under the Roman rule the Egyptians were ruled by Roman law and the old Greek/Egyptian separation was eliminated.