The quote was pretty much the first that popped up when I started Googling. (There's also one that seems to relate more to the puzzle title than the actual quotation).
Mixed feelings on this. Some of the clueing seemed rather obscure given all the other puzzle techniques involved. Struggled for a while then a few letters on the perimeter made the author/translator obvious. So at one point I had a half empty grid and a complete perimeter!
I'm reasonably sure I've completed the whole thing but some (2) of the letter groups from the end game don't seem particularly associated with 'a word in the quotation' while the rest clearly do. I'm missing something but not sure what. I'll have a ponder and move on to the Inquisitor.