 Whether one is persuaded by Chihara and Fodor’s position against appeal to criteria will depend in part upon one’s assessment of the correctness of thinking about mental states on the model of unobservables in science. Furthermore, it may be thought that to understand mental states to be entirely explanatory phenomena is arguably to lose sight of the subjective aspect of these states. Finally, to think of mental states as lying behind and causing behavior may be thought to break what some see as a deep connection between mentality and behavior, thereby opening up the possibility that I am alone in the universe (Avramides 2013). 