As the time goes by, experience and knowledge are focused through the prism of talent, which can itself be sharpened, focused, and polished. This mix is the source of intuition, an absolutely unique tool that each of us possesses and that we can continuously hone into an ever finer instrument. Here we begin to see the influence of individual psychology and our emotional makeup as it is expressed in our decisions – what we call style in a chess player.

Garry Kasparov, How Life Imitates Chess