The characters combine literally and powerfully: “Restrain (克) oneself (己) to respectfully serve (奉) the public (公).”
The idiom 克己奉公 is a cornerstone of Confucian political and ethical philosophy. It embodies the ideal of the jūnzǐ (君子), or “noble person,” who cultivates inner virtue to better serve society. In traditional Chinese thought, a leader's legitimacy wasn't just about power; it was deeply tied to their moral character. A ruler who was seen as self-serving would lose the “Mandate of Heaven,” while one who practiced 克己奉公 would earn the respect and loyalty of the people. A useful Western comparison is the concept of “public service” or “civic duty,” but 克己奉公 carries a much stronger emphasis on self-denial. While a Western politician might speak of “serving the people” as their job, 克己奉公 implies a conscious, ongoing struggle against one's own selfish instincts. It's not just a professional role; it's a moral state of being. This value is tied to the collectivist nature of Chinese society, where the well-being of the group is often held in higher esteem than individual desires.
This is a very formal and laudatory (praise-giving) term. You will almost never hear it in casual, everyday conversation among friends.