Lovely quote. Frame it up but don't mention Lao Tzu because I don't think he said it . The Tao Teh Ching used to be my favourite study book when I was learning Chinese and I can't remember anything like it in there. The words don't feel right anyway. "Peace" sounds very New Age, which Lao Tzu wasn't. He'd rather be still, plain and empty, which his New Age fans aren't . Mind you, the idea behind the quote was excellent but Lao Tzu would have said it like this: Terminate the known, no regrets Let go the unknown, no worries Still and empty, the sage stays centered.