Gordon Parks, This Rare Collection, LIFE's 100 Photographs That Changed the World

p7: ...I have come to believe that no art form transforms human apathy quicker than that of photography.  Having absorbed the message of a memorable photograph, the viewer's sense of compassion and newfound wisdom come together like two lips touching.  And it is an extraordinary thing when an unforgettable photograph propels you from an evil interlude to the conviction that there must come a better day.