《天工开物·中篇·膏液》
乃至切碎的蔬菜入锅烹调，如果没有油，就好比婴儿没有奶吃而啼哭一样，都是不行的。
至蔬之登釜也，莫或膏之，犹啼儿失乳焉。斯其功用一端而已哉？
Even if chopped vegetables are cooked in a pot, if there is no oil, it is like a baby crying because it has no milk, it is impossible.