31、粮食就是生命，知识拯救灵魂。
Food is life, knowledge saves the soul.
32、身后有余忘缩手，眼前无路想回头。
Behind him, there is no way to turn back.
33、珍爱食物，勤俭节约食物。
Cherish food and save food diligently.
34、珍惜粮食，远离浪费。
Cherish food and keep away from waste.
