Who knows that every grain in our dishes is obtained through hard work?

Motto or motto

It is easy to be frugal, but difficult to be frugal. Sima Guang in 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