My contribution to Proverbmonday 21 January 2008 is a photo of a small part (1/25) of the famous Pieter Bruegel painting "The Dutch Proverbs". The complete painting pictures over 120 proverbs and sayings, and was shown earlier:
http://www.fotothing.com/senna3/photo/34b4c53a96afe870d7007b97d510f76c/start=37 .
In the above picture one may recognize for example:
"Als het hek van de dam is, dan lopen de varkens in het koren" meaning "If the cat is away, then the mice will play".