"From the very first moment I took pictures [on the streets of Philadelphia], I loved it," Mark told the Inquirer’s Michael Matza in 1988. "The thrill was the idea of just being on a street, turning a corner and looking for something to see. It was just an amazing feeling. ... Photography became my obsession. ... In a way it's not so different when I go out to work now. It's just that now I have years of experience in knowing how to use that little machine in front of me - at least better than I used it then. When it's good and interesting it's still that feeling of being on the street and wondering - God, I love this! - what's going to happen next?"



