《资治通鉴·唐纪·唐纪六十一》
因此，我想最好还是恪守自己的职位，训练士卒，在朝廷内部，充当陛下的心腹，在朝廷外部，则充当捍卫陛下的疆吏。
谨当修饰封疆，训练士卒，内为陛下心腹，外为陛下籓垣。
Therefore, I think it is best to stick to my duties, train soldiers, serve as His Majesty's confidant inside the court, and serve as His Majesty's frontier official outside the court.