《天工开物·上篇·乃粒》
麻和豆这两类已经被完全列为蔬菜、糕饼、脂油等副食使用了，之所以将它们归入五谷之中，只不过是沿用了以前的说法罢了。
麻、菽二者，功用已全入蔬饵膏馔之中，而犹系之谷者。
Hemp and beans have been completely relegated to the ranks of vegetables, pastries, and secondary foods such as oil or fat; they are only classified as grains because of how things used to be in the past.