Both would often "study deeply the advantageous methods of the ancients, the better to attain perfection." Just as people today try to improve their game with the help of coaching and videos, these emperors of old were constantly trying to brush up their skills by drawing on the knowledge of past masters.
兩人平日「深求古人之宜製，而益致其精也」，就像現代人藉助教練與教學錄影帶來改善球技，兩位帝王則三不五時以古為師，讓球技精益求精。