<P> In his On Generation and Corruption, Aristotle related each of the four elements to two of the four sensible qualities: </P> <Ul> <Li> Fire is both hot and dry . </Li> <Li> Air is both hot and wet (for air is like vapor, ἀτμὶς). </Li> <Li> Water is both cold and wet . </Li> <Li> Earth is both cold and dry . </Li> </Ul> <Li> Fire is both hot and dry . </Li> <Li> Air is both hot and wet (for air is like vapor, ἀτμὶς). </Li>

Who proposed the earth wind and fire theory