http://www.google.com/search?hl=en&q=contradictory+proverbs&btnG=Search&aq=f&oq=&aqi=
Trouble is, often they're not that contradictory - or even proverbs.
Just popular sayings with little wisdom, such as "opposites attract."
Sure they do - briefly. Sort of like static electricity.
But they're fun!
And, of course, many are based on "Aesop's Fables."
Lenona.