克勤克俭

kè qín kè jiǎn

(idiom) industrious and frugal

克

kè

variant of 剋|克[ke4]

勤

qín

variant of 勤[qin2]

克

kè

variant of 剋|克[ke4]

俭

jiǎn

(bound form) frugal; thrifty