Different ice and charcoal vessels
Ice and charcoal ware is a Chinese word, and its pronunciation is B ī NGT à Nb ù t ó ngq ì, which means that ice and charcoal can not be placed in the same utensil. It means that things with different properties are mutually exclusive and incompatible.
explain
Ice and charcoal can't be put in the same appliance. Things of different metaphorical nature are mutually exclusive and incompatible.
source
Han Feizi's Xianxue: "the ice and charcoal of husband are different, but the cold and heat are different, and sometimes they come. On the contrary, it is not necessary to establish two systems of learning and to govern it. " It's not like we live together. (excerpt from selected Yuanqu · Yuqiao Ji)
Different ice and charcoal vessels
speak of ice to insects that live only one summer - xià chóng yí bīng
at large the better to apprehend him - yù qín gù zòng