Book 12: 《顏淵》 Yan Yuan
《顏淵》 Passage 12.14
子張問政。子曰:「居之無倦,行之以忠。」
Legge Translation (1861)
Zizhang asked about government. The Master said: "The art of governing is to keep its affairs before the mind without weariness, and to practice them with undeviating substitution."