What’s Wrong with St. Anselm’s Ontological Argument

St. Anselm of Canterbury (1033-1109) was a monk and theologian who, in his Proslogion, gave an argument for the existence of God on the basis of the definition of God—i.e., on the basis of what it would mean to be  God.  The argument is fatally flawed and should convince no one, but, somewhat surprisingly, it has supporters even to this day.  St. Anselm’s ontological argument for the existence of God runs about like this:  (1)  God is that greater than which none can be conceived; (2)  an existent God would be greater than a nonexistent God; (3) if God did not exist, then something greater could be conceived—namely, a God that did exist; (4)  therefore, God exists.

Although it is possible to analyze this argument in some detail, I’ll just give the main problem here.  The argument fails to distinguish between an object or entity  and the mental conception of an object or entity.  (A lion wandering the African savannah isn’t the same as my mental conception of it; the former is a solid object, while the latter is only an idea.)  It might be that an object God would be greater than its mental conception, or that it would be greater for both the object God to exist and the mental conception of God to be conceived than it would be for the mental conception of God to be conceived without the object God’s existing; but the conception of God may be the greatest conceivable either way.  The object God’s existence or nonexistence doesn’t affect its mental conception’s being the greatest possible mental conception.  (Had St. Anselm argued that the conception of God is the greatest conceivable mental conception, and that the conception of God as existent would be greater than the conception of God as nonexistent, so that the conception of God must be conceived as existent, I’d've had no problem with the argument—but it wouldn’t have established God’s existence.  I conceive of Pegasus as winged, as maned, as white, as solid, as physical—as existent—but I do not thereby bring Pegasus into existence; and I may conceive of Pegasus as giving a ride to my nephew instead of to Bellerophon—I may conceive of Pegasus as nonfictional rather than as fictional—but, again, I do not thereby bring Pegasus into existence.  Conceiving of God as existent is not the same as affirming God’s existence; neither being conceived of as having existence-implying properties nor being conceived of as nonfictional implies actual existence.)

Even the language of the argument is deceptive.  One conceives  mental conceptions, but conceives of  objects; as phrased, the argument has the object God conceived.  Paying proper attention to the difference between existing  and being conceived of  makes that problem go away, but it also completely nullifies the argument.  “God is that entity whose mental conception is the greatest possible,” together with, “An existent God is greater than its mental conception,” doesn’t lead to a contradiction if God is assumed not to exist. 

24 Responses to “What’s Wrong with St. Anselm’s Ontological Argument”

  1. Big Ideas Says:

    The 70th Philosophers’ Carnival…

    Welcome to the 70th edition of the Philosophers’ Carnival, a fortnightly round-up of quality philosophical posts from the blogs of the world. It seems to have been a busy two weeks, so hopefully there’s something here for everyone; apologie…

  2. Bongo Chumunga Says:

    As Schopenhauer said, you can’t make a real object out of a mental concept.

  3. TimothyLRsa Says:

    walkerton zip code
    xrzwg walkerbroscircusroutesheet

  4. TimothyLRsa Says:

    walker schork
    qrncz walker how many pages does meridian have

  5. Pavel Says:

    Good ideas. Adviced to friends

  6. JohnNOsa Says:

    very good

  7. QRGarrettsa Says:

    very good

  8. Cash Advance Says:

    Mainland Cash Advance Article Cash Loan Advance Expert ~ Highly rated finance experts offer advice on Payday Cash Advance Loans which focuses on online cash advance ! Understand About Online Payday Loans = http://www.horizoncashadvance.com

  9. Advance Cash Loan Payday Through Says:

    This is such a wonderful and informative way to reach others. I Will be more than glad to share this site

  10. Max Says:

    What’s Wrong with St. Anselm’s Ontological Argument is a quite interesting post but quite difficult to understand for me .

  11. Cash Advance Payday Cash Loans Says:

    I never thought i will find this much information on s Ontological Argument today. Nice post mate - keep up the good work.

  12. Advance Cash Loan Online Payday Payday Says:

    Hey!, been surfing the net for advance cash loan online payday payday and found your blog regarding s Ontological Argument. You really know your stuff! I?d like to see more posts here. Will definitely bookmark it and come back.

  13. Advance Cash Loan Payday Online Says:

    You got a nice post on s Ontological Argument. Really very nice to read and useful, thanks for the nice share.

  14. Cash Loans Says:

    Good site I \”Stumbledupon\” it today and gave it a stumble for you.. looking forward to seeing what else you have..later

  15. Online Payday Advance Loan Says:

    Hi there I was browsing Internet searching for online payday advance loan and your blog regarding s Ontological Argument came my way.Very interesting! You really do know your thing! I?m gonna bookmark you and come back in a few to see yournew posting! Looking forward to! Cheers!…Home Equity Mortgage Debt Consolidation Loan Online

  16. Cash Advance In Says:

    It?s a great website of yours. I surfed by and found it very informative. Bookmarked and check you back in a while

  17. Max Says:

    I couldn’t understand some parts of this article, but I guess I just need to check some more resources regarding this, because it sounds interesting.

  18. Cash Advance Loan Says:

    I found your blog via Google while searching for Cash Advance Loan and your post regarding s Ontological Argument looks very interesting to me.

  19. Max Says:

    Please keep these excellent posts coming.

  20. Seteinjenna Says:

    adults dating

  21. Max Says:

    Found your blog on yahoo - thanks for the article but i still don’t get it.

  22. Jim Spence Says:

    I was searching for Blogs about payday cash loans and found this site. I am interested in your content and appreciate sites like this.

  23. Max Says:

    Can it be that your server is infected with a virus - I get an Virus warning when I open your site with Firefox - Just for your Info.

  24. bopdilly Says:

    Excellent blog! Interesting article and very informative! I will necessarily subscribe for this blog. http://lowsalego.com/map.html

Leave a Reply