"Intellectually, I'm a caveman."

Thanks to everyone who kindly tried to help me find the origin of this quote today, which I sought for some vague, pointless reason. Since those of you who are still curious are doubtless finding this blog entry now, I'll tell you what one intrepid Googler was able to discover (thank you, Drew): it was most likely Sly Stallone, around 1976.

It's not much of a quote, but no one else seems to have said it.

UPDATE: There are a number of interesting hits on a Google search for intellectual caveman.