If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away.We often forget this, I think, because we understand that those around us MUST hear the same drummer that we do, and therefore, the failure of others to keep pace with us is willful on the one hand, or born of some defect on the other. But there is space in our world for innumerable drummers, each making their own music, whether we hear them or not.
Henry David Thoreau
Of all of the things that we have confidence in, the twin beliefs that we are objective and clear of mind are perhaps the most dangerous, because they blind us to the idea that we do not always experience the world as others do. For all that we pay lip service to the idea that all people are individuals, we often ignore the fact that such individuality may be much more than skin deep.