 Third, assuming that moral claims to personality could be expanded to tangible or intangible items, we would still need an argument justifying property rights. Personality-based moral claims may warrant nothing more than use rights or prohibitions against alteration. Finally, there are many intellectual innovations in which there is no evidence of a creator’s personality—a list of customers or a new safety-pin design, for instance (Hughes 1988). Given these challenges, personality-based theories may not provide a strong moral foundation for legal systems of intellectual property.