Who knows that every meal in our plate is obtained after hard work?

Motto or motto

It is easy to be frugal, but difficult to be frugal. Sima Guang (Northern Song Dynasty)

Thrift and simplicity are human virtues. Xue Xuan (Ming)

It is not easy to think about a porridge and a meal; It is difficult to keep thinking about material resources. [Qing] Zhu Yongchun