The Online Photographer has a great piece on Peter Turnley, an American photographer who's spent his adult life in Paris. Les Pres Spirituels translates as "spiritual fathers" and Turnley's had many: Robert Doisneau and Josef Koudelka among them. Turnley learned much from them, little of it about f-stops:
As with many of the great photographers he knew, they seldom talked about photography. The topics of discussion always had to do with world affairs, an engagement with the issues of the day, with...well, life. These days it seems like photography consists of an endless roundel of keeping up with cameras and software. It's important to remind ourselves, at least now and then, that a lot of what's important about photography isn't about photography at all.