Chang relates optimistically, "Green consciousness is buried deep within the unconscious of human civilization. Now, as we face the threat of global warming, aware individuals will take it upon themselves to help save the environment without anybody prompting them."
文明發展至此，人類面臨全球暖化的威脅，不需任何指引，覺醒的人也會自動走向環保之途。」小時候痛恨美式資本主義的張文毅，60 歲以後在美國用他的綠色環保理念，顛覆了資本主義的賺錢邏輯。