"Within a week, Heller knew that he had found the best friend he would ever have; and he knew that the friendship came from Roark's fundamental indifference.  In the deeper reality of Roark's existence there was no consciousness of Heller, no need for Heller, no appeal, no demand.  Heller felt a line drawn, which he could not touch; beyond that line, Roark asked nothing of him and granted him nothing.  But when Roark looked at him with approval, when Roark smiled, when Roark praised one of his articles, Heller felt a strangely clean joy of a sanction that was neither a bribe nor alms."  from The Fountainhead, by Ayn Rand.