克勤克俭 Origin — Chinese Character Wiki

kèqínkèjiǎn

industrious and frugal

克 kè

to be able to

(formal) To be able to or capable of (often used in the negative 不克 bùkè)
勤 qín adjective

diligent

diligent; industrious; hardworking; doing one's best without being lazy
克 kè

to be able to

(formal) To be able to or capable of (often used in the negative 不克 bùkè)
俭儉 jiǎn adjective

frugal

thrifty; frugal; economical