It's an interesting question as to what the A to Z analogy really means. Is "foundation" and "fulfillment" what is going on when we travel from "A to Z"? Is "Z" the "fulfillment" of "A"? (I suppose if you're looking at the full string, then the full string of letters might be seen that way). Or is the analogy really firmly focused on "First to last" which is more of a "time" analogy than a "fulfillment' analogy? (And although it's familiar to us from religion, it probably doesn't deserve that taint, because it's useful apart from religion - right?)
I say all that because I suppose the issue is ultimately "How was Epicurus using it?" When we say "beginning and end" the word "end" get's confusing with "goal." But if we say "first to last" then "last" doesn't have quite the same connotation of goal, it really just means "last," like from our first breath after birth to our last breath in dying.
