A turning point occurred when he enrolled at
Rochester Institute of Technology in 1957 where his philosophy and purpose in life were clarified by
Minor White, one of the legendary professors. It was the deeply spiritual nature of Minor White along with his knowledge of poetry and
Eastern philosophy that affected Doren. A quote by Peter Layton describes Minor's teaching. " He created an atmosphere for constantly questioning ideas or responses." It was under Minor's influence that Doren began to photograph what he called
Americana Faces which was a documentation of the land and its people from 1960 to 2003. A "face" was not just a human face but included everything in the land and sky. He photographed throughout the US and returned frequently to the southwest. While working on the
Americana Faces, he produced other documentary series during extended visits to Italy, Greece, Scotland and China. Related to Doren's documentary photographs were experimental works, including a series on "light", that was inspired by Minor White and by another influential teacher,
Ralph Hattersley. ==New York City 1960-1978==