Early eliminativists such as Rorty and Feyerabend often confused two different notions of the sort of elimination that the term "eliminative materialism" entailed. On the one hand, they claimed, the cognitive sciences that will ultimately give people a correct account of the workings of the mind will not employ terms that refer to common-sense mental states like beliefs and desires; these states will not be part of the ontology of a mature cognitive science. But critics immediately countered that this view was indistinguishable from the identity theory of mind. Quine himself wondered what exactly was so eliminative about eliminative materialism after all: