Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.
你的快乐无法持续是因为我。
纺织行业必须拥抱可持续性，否则将被淘汰。
Do not let your fire go out, spark by irreplaceable spark.
"Writing is a way of speaking without being interrupted."