《隋书·帝纪·卷二》
每日早朝，日西还不觉得疲倦。起居和服用玩物，一定保持节俭，令行禁止，上下同一。
每旦听朝，日昃忘倦，居处服玩，务存节俭，令行禁止，上下化之。
He went to court early every morning, and at dusk he was still not tired. He dressed and dined frugally and enforced rules and regulations, setting an example for the whole country.