An old Chinese saying goes, "Love the rat and leave behind a little rice; take pity on the moth and do not light the lamp," and an ancient adage warns, "Eat not all the fish and use not all the timber."
「愛鼠常留飯、憐蛾不點燈」，是老人家經常放在嘴邊教訓兒孫常存惻隱之心的口頭語；「魚鰲不可勝食、林木不可勝用」，是古人經營田獵的原則。