Jieun Baek said this quote
“ People say mountains change in about ten years. If something as stubborn and mammoth as a mountain can change in a decade, the hearts of ordinary North Koreans can change. I'm sure of it. I'm living proof. --Ha Young, a North Korean defector interviewed in Jieun Baek's book North Korea's Hidden Revolution: How the Information Underground is Transforming a Closed Society ”