  Reid constructs a theory of personal identity in opposition to Locke's account, which appeals to psychological continuity as a necessary condition for sameness of person over time. Reid argues that Locke has misunderstood the relationship between consciousness and memory. Reid develops a direct theory of memory according to which the objects of memory are events in the past, not mental representations. Reid attempts to provide sufficient continuity of the self through time to ground sameness of person without lapsing into Humean skepticism about the self.