Bill Pierce on why it makes sense for some photographers to travel light.
David Alan Harvey works, whenever possible, with a small camera (Leica) and a single lens (35mm). David is one of those people, wise before his time, who realizes photography is about what is in front of the lens, not in back of it. All the equipment in the world can’t save your butt if you can’t observe, deal and, sometimes, even understand your subject. Indeed, all of the equipment in the world, when it is hanging around your neck, can be a real impediment to dealing with your subject.
Mentions Henri Cartier-Bresson (who worked primarily with his Leica rangefinder), Richard Avedon (who mostly works with a twin-lens Rollei and an 8×10) and Arthur Grace (whose book Choose Me was shot with a twin-lens Rollei). Via Ian G., aka 4edges.
Eight Diagrams 
Exactly. I think Ernst Haas summed it all up:-
“There is only you and your camera. The limitations in your photography are in yourself, for what we see is what we are.”