Caution is the parent of safety. 小心驶得万年船Safety is a commodity. 安全就是商品!Safety at first 安全第一!Playing for safety can get off with a whole skin.谨慎行事才能安然无恙!... Caution is the parent of safety. 小心驶得万年船Safety is a commodity. 安全就是商品!Safety at first 安全第一!Playing for safety can get off with a whole skin.谨慎行事才能安然无恙!...