George Barr (Behind The Lens) posted an interesting perspective on the ways that doubt can hold us back:

Doubt Doubt creeps into photography everywhere, from thinking that you won’t find anything today, to pessimism over the weather, to thoughts about the quality and volume of your photographs, to how you think others will perceive our work. Doubt can literally keep us home when we should be out shooting, or giving up, just before the sun finally breaks through and highlights the subject… – George Barr [Behind The Lens]

Follow the title link to read the whole thing.