The following are quotes that I have collected but for which I cannot provide a source. I think that they are thought-provoking nonetheless.
"If I were to gain the status to which others aspire, I would have failed to do what I should do."
"What people tend to forget is that there is a huge difference between fame and fortune gained from mere notoriety and that achieved by doing something worthwhile."
"One of the most subversive things that somebody can do is be generous."