I have often thought that if photography were difficult in the true sense of the term — meaning that the creation of a simple photograph would entail as much time and effort as the production of a good watercolor or etching — there would be a vast improvement in total output. The sheer ease with which we can produce a superficial image often leads to creative disaster.
"A Personal Credo" (1943), published in American Annual of Photography (1944), reprinted in Nathan Lyons, editor, Photographers on Photography (1966), reprinted in Vicki Goldberg, editor, Photography in Print: Writings from 1816 to the Present (1988)