All comparisons between America's current place in the world and anything legitimately called an empire in the past reveal ignorance and confusion about any reasonable meaning of the concept empire, especially the comparison with the Roman Empire.
Donald KaganFrom the time I was a little boy I found myself reading history when I had a choice. I read a lot of things, but history had a special appeal for me.
Donald KaganThroughout the human experience people have read history because they felt that it was a pleasure and that it was in some way instructive. The profession of professor of history has taken it in a very different direction.
Donald KaganI can see that you [Bruce Cole] are a true historian because you really always ought to ask that question about anybody at a different place or a different time: What's the same and what's different?
Donald Kagan