克己奉公 (kè jǐ fèng gōng): To be strict with oneself and devoted to public duties — Meaning & Stroke Order

As a civil servant, one should be self-disciplined and devoted to public service, honest and self-regulated.

He was self-disciplined and devoted to public service all his life, never seeking personal gain.

The company commended those outstanding employees who were self-disciplined and dedicated to the public good.

Only by being self-disciplined and devoted to public service can you win everyone's trust.