Not sure who did this engraving, and it's not a good likeness, but I find the inscription interesting. What's it say? "Praised by some, Blamed by others"? And a reference to Horace? Sort of reminds me of Dewitt's opening paragraph - "At the very outset the reader should be prepared to think of him at one and the same time as the most revered and the most reviled of all founders of thought in the Graeco-Roman world."
This screen clip comes from Allposters.com - "Perfetti" (is that a reference to an artist or art type?)