<p>'We always believe that changing our mind is an improvement, bringing a greater truthfulness to our dealings with the world and other people. It puts an end to vacillation, uncertainty, weak-mindedness. It seems to make us stronger and more mature. Well, we would think that, wouldn't we?'<br><br>In this engaging and erudite essay, critically acclaimed writer Julian Barnes explores what is involved when we change our minds: about words, about p...