Now, as I mentioned before, it is possible for someone to be a genius in one aspect of life but be utterly revolting in another. Beethoven wrote divine music. I recommend his string quartets (example above) as a great provider of solace when you go through difficult and emotionally wrenching times -- I know, for they help me a lot when I had tough episodes. But Beethoven was a slob. He even left an un-emptied chamber pot under his piano. In case you do not know what is a chamber pot, that's what people used to poo and piddle into. His unhygienic habits made it difficult for him to find a girlfriend. Another example of a highly intelligent person with bizarre habits (in this case a devotion to Nazi ideology) is the mathematician Oswald Teichmuller.