  Personalists typically reject this, and insist that each living human being normally possesses – actually and not merely potentially, although the importance of further development or actualization is strongly stressed – the definitional and constitutive consciousness, intentionality, will etc., the radical capacity to reason, laugh, love, and choose. These are not just some abstractly conceivable common characteristics of a species, but aspects of the unique, individual, organic functioning of every human being. In this way, personalists see personhood as subsisting even while its operations come and go with many changing factors such as immaturity, injury, sleep, and senility.