Simply and elegantly stated.
I've always gotten the impression though that Maior was held in higher esteem by people like Cicero as well, and he definitely would have had access to other sources. I could be reading too much into it though. -MWasn't that more because Polybius worked for Aemilianus (thus was complimentary of his ancestor Africanus), and his works happen to have survived (where others that might have been critical have not)?
Bookmarks