Vinaya school, focused on the elaboration of the monastic regulations on the base of Four Fart Vinaya, was regarded to be found by Daoxuan (596-667) in Tang dynasty. By contrast with Tiantai, Huayen, Chan etc., Vinaya school showed less interest in philosophical investigation. However, Daoxuan claimed that the doctrine of the Four Part Vinaya anticipated the spirit of Mahayana teachings and the essence of the precepts (jieti) was karmic "seed" which being the underlying force for attaining Buddhahood. Also, Daoxuan put forward his own ideas and intrepertations on the status of vinaya, classification of regulations, nature of guilty etc.. From then on, vinaya plays a vital position in Buddhist studies. All these should be considered by serious Buddhist scholars.
