“I am not limiting myself to theories, so I never question the rightness to my approach. If I am interested, amazed, stimulated to work, that is sufficient reason to thank the Gods, and go ahead! Dare to be irrational! — keep free from formulas, open to any fresh impulse, fluid.”
Edward Weston letter to Ansel Adams
You can find more about Jacob Riis in “Jacob Riis: Shedding Light On NYC’s ‘Other Half'”.