Not who you're looking for? Others named Edward Steichen: American photographer, artist and curator (1879-1973)
“Photography records the gamut of feelings written on the human face, the beauty of the earth and skies that man has inherited, and the wealth and confusion man has created. [It is] a major force in explaining man to man.”
“Today, I am no longer concerned with photography as an art form. I believe it is potentially the best medium for explaining man to himself and his fellow man.”
Quotes via Wikiquote (CC BY-SA), each with its original source.