Illustration Friday: Wisdom

What's the first thing you think of to symbolise Wisdom? An owl. But in fact they're down the 'blockhead' end of the spectrum of bird intelligence. I always thought that ravens were pretty wise looking (if a little grumpy) and that made me think of Woden (the English version of the Norse god Odin). He gave up an eye in the search for wisdom and employed two ravens (whose names I forget) in his search for knowledge.