Help?

I heard something over the radio this morning. It’s a wonderful quote on criticism (they said it’s from Pope John Paul). The gist is that we seem to be more open to being destroyed by praise than by being molded by criticism.  I love love love the idea behind the quote. I am one person who really really really craves for criticism…so much so that I criticize myself…ROTFL! 

 Has anyone heard of this quote? Can you give it to me verbatim?

I’ve tried searching online and I can’t find it, I did come across another interesting one.

If you are not being criticized, you may not be doing much — Donald H. Rumsfield