囊萤照书

Explanation: Capsule firefly: firefly on the bag. Describe a poor family, diligent study. 　　Source: "Jin Shu Yin Chuan car" car Yin Christine tireless diligence, learned through, poor family rarely have the oil, the summer months the training capsule according to the book filled with dozens of fireflies, the night following the day to Yan. "