It should really be an obvious that this is the case because the same thing is true about all the visual arts, but the trouble is that we are so often taken with what our own photogarphs represent, or the concept behind them, that we don't see that they don't work as a picture, that the form doesn't work or that, that it clashes with what we are trying to say or that it's merely a graphic artifice.
The idea of the meaning flowing from the content can be particularly problematic when we consider emotion: many people say that they like to see emotion in photographs and some photographers say that they are seeking to express emotion, or mood in their pictures. I feel strongly that it has to be the other way round: to make a good picture you have to feel the the form, have a passion for it, and, then, the emotion will carry through from the form and give meaning to the picture. Starting by trying to express emotion or mood will, at best, result in pictures that either don't work or are shallow, or, at worst will be kitsch.
Another interesting thing from the Lifson interview article is that Lifson like to use the phrase "making pictures" rather then "taking pictures". I think this is right but we also need to recognize that photography is an art of selection: first, what to we frame? — Lifson emphasizes: where do we establish the edges? But then there is the next level of selection, at which we must select the pictures that we are going to use from all the ones that we have shot: this choice is as important as the first one when we clicked the shutter, and the selection can be difficult to make: sometimes one can suddenly come to the realization years that a frame that one has never printed can indeed make a good picture. For this reason it's better to keep pictures from a digital rather than deleting all the one's that one does not immediately like. Photography is difficult.
As I don't believe in making such a posting without showing some pictures here are some: the first three were selected by Sean Reid for display in his review of the Leica D-Lux 3 for which he asked me to contribute a "second opinion":
[continued in repsonse to this posting...]