Here's an interesting article on Dr. Claus Shannon:

From the article:

Where does that fundamental drive come from? Shannon’s most evocative formulation of that elusive quality put it like this: it was “a slight irritation when things don’t look quite right,” or a “constructive dissatisfaction.” In the end, Shannon’s account of genius was a refreshingly unsentimental one: A genius is simply someone who is usefully irritated.