“If I could tell the story in words, I wouldn't need to lug around a camera.” ~Lewis Hine.
I take this quote to mean that since a "picture is worth a thousand words' it would take a lot to describe what was going on in an image. Therefore, it is easier to take an image to tell the story. I do agree with this idea. You can show someone an image and not tell them what was happening but they will still have some sense of the story behind the picture. Also, even if they dont understand the image right away a few words instead of a lot may point them in the right direction to understanding it.