" Take a moment. What was it you saw when you were moved to pick up the camera? I'm going to pretend I didn't hear you mutter something about thinking "it looked cool." Dig deeper. Was it a thought, a feeling, a simple moment when your eyes did a double-take at the intersection of two lines? Was it a lick of light, two blocks of color? "

― David duChemin , Vision & Voice: Refining Your Vision in Adobe Photoshop Lightroom