Why Rome and Greece, and Then Why Greek and Latin?

Greeks had no doubts about their cultural superiority. They could be sceptics, but they were not tormented by self doubt. But it was the romans who insured the survival of that intellectual heritage underlying liberal learning and classical education. The unity the romans achieved out of that diversity is amazing to ponder. As maru has observed, unity could come only from sharing a single ideal, a common attitude towards the purpose of existence and the various means of attaining it.