Common sense tells us that performance comes and goes, but costs go on forever.
常识告诉我们，业绩来来去去，但成本永远存在。
The best solutions often come from listening to those who work the land.
所以，国家的钱财不足以来应付饥荒，救济孤儿寡妇，这样，国家就贫困，百姓就难于治理。