IT IS A DISASTROUS DISCOVERY, AS EMERSON SAYS SOMEWHERE, that we exist. I mean, it is disastrous when instead of merely attending to a rose we are forced to think of ourselves looking at the rose, with a certain type of mind and a certain type of eyes. It is disastrous because, if you are not very careful, the colour of the rose gets attributed to our optic nerves and its scent to our noses, and in the end there is no rose left.