《汉书·传·董仲舒传》
所以有职守的官吏，都竭尽自己的才能和智慧，努力做好工作，争取立功。
是以有司竭力尽知，务治其业而以赴功。
Therefore, officials with official duties have exhausted their talents and wisdom to do their jobs well and strive to make meritorious deeds.