劳心劳力 láo xīn láo lì

DEFINITIONS

  1. to tax one's mind and body
  2. demanding (work)
  3. dedicated (worker)
  4. hard-working

CHARACTERS

劳 láo labor, toil, do manual work
心 xīn heart; mind, intelligence; soul
劳 láo labor, toil, do manual work
力 lì power, capability, influence