头悬梁，锥刺股

to study assiduously and tirelessly (idiom); see also 头悬梁，锥刺股

lit. to pierce the wall to steal a light (idiom); fig. to study diligently in the face of hardship

lit. to collect fireflies and study by their light (idiom); fig. ambitious student from impoverished background; burning the midnight oil

lit. the leather binding (of the bamboo scroll) has broken three times; fig. to study diligently

lit. diligent and never slacking (idiom); continuous concentrated effort; assiduous (in study)

lit. always with a book in hand (idiom); fig. (of a student or scholar) diligent and hardworking