《资治通鉴·唐纪·唐纪三十二》
行政制度有常规就容易管理，事情归于根本就难有过失，从经邦治国的长远利益考虑，除此之外，还有什么可以依据的呢！
政有恒而易守，事归本而难失，经远之理，舍此奚据！
When administration has regular procedures, it is easy to manage. When things are returned to their fundamentals, it is harder to make errors. If one takes the long-term benefits of governance into consideration, what else is there to go by apart from this?