凿壁偷光 (záo bì tōu guāng): lit. to pierce the wall to steal a light; fig. to study diligently in the face of hardship
凿壁偷光
lit. to pierce the wall to steal a light; fig. to study diligently in the face of hardship
A poor student chipped a hole in the wall to read by his neighbour's lamp. The classic image of studying under conditions that should have made study impossible.