A mistake is an event, the full benefit of which has not yet been turned to your advantage.
Over the years, I have learned that every significant invention has several characteristics. By definition it must be startling, unexpected, and must come into a world that is not prepared for it. If the world were prepared for it, it would not be much of an invention.
Any problem can be solved using the materials in the room.
It's not that we need new ideas, but we need to stop having old ideas.
Creativity is the sudden cessation of stupidity.
The process must be concealed from - non-existent for - the photographer, who by definition need think of the art in the taking and not in the making photographs... In short, all that should be necessary to get a good picture is to take a good picture.