The Distinction of Essence and Existence | Prof. Edward Feser by The Thomistic Institute - WE HAVE MOVED, SEE BIO published on 2017-07-13T15:16:23Z A lecture on June 30, 2017 at Aquinas Philosophy Workshop. Genre Religion & Spirituality Comment by MarelRehana Wait, he uses the asprin example to refute the objection of circularity, but, he doesn't really respond to the problem. He says "suppose it is known that acid is a pain reliever, but not that it is a acetysalicylic acid. Then, I have an incomplete conception of asprin, but I haven't misconceived of what asprin is. However, if I claim that aspirin is NOT a acetysalicylic acid, I have misconceived of what aspirin is". I am paraphrasing, but he goes on to say, "by contrast, if I judge that apsrin does not exist, while I have judged falsely I have not misconceived of what it is". This seems to have the same problem of circularity. If you actively say aspirin does NOT exist, it is the same as saying it is not a acetysalicylic acid, so, you HAVE misconceived of what it is, if, we are allowing that the essence of aspirin could be identical with its existence. 2019-02-06T17:57:01Z