"Poetry Rules" by Wang Changling

In the Tang Dynasty and the Five Dynasties many poets wrote works like Poetry Rules by Wang Changling,but these books were mostly written in the early,mid and late Tang Dynasty.In the heyday of the Tang Dynasty only Wang Changling wrote Poetry Rules.Wang Changling wrote Poetry Rules as well as poems in the young and romantic heyday of the Tang Dynasty because he wanted to undertake the responsibility as teacher of poetry.Meanwhile,as assistant of county magistrate he also wanted to pacify his empty helpless bitter mind.That's why Wang Changling was the only writer who wrote Poetry Rules in the heyday of the Tang Dynasty.