In the absence of a subject ...

In the absence of a subject with which you are passionately involved, and without the excitement that drives you to grasp it and exhaust it, you may take some beautiful pictures, but not a photographic oeuvre.
 Brassai

Quotes from the same author

Only powerfully conceived images have the ability to penetrate the memory, to stay there, in short to become unforgettable.
 Brassai
Photography in our time leaves us with a grave responsibility. While we are playing in our studios with broken flowerpots, oranges, nude studies and still lifes, one day we know that we will be brought to account: life is passing before our eyes without our ever having seen a thing.
 Brassai