I only see it on the internet in personal quote collections or "favorite quote" on personal webpages (and not many) unattributed or "anonymous."
I'm rather shocked to see that no one has given it the obligatory Twain/Lincoln/Shaw/Churchill/Wilde/Rogers attribution yet.
"THE ULTIMATE IGNORANCE IS REJECTING SOMETHING YOU KNOW NOTHING ABOUT."
http://www.angelfire.com/oh2/peterr/quo ... spage.html
The worst ignorance is rejecting something you know nothing about
"An old wise man once said that the greatest ignorance is rejecting something you know nothing about."
- Andy, quoting an old wise man.