  Despite Reid's certainty on this point, he gives few further details about the nature of personal identity and the self. Personal identity implies the “continued existence of that indivisible thing which I call myself. Whatever this self may be, it is something which thinks, and deliberates, and resolves, and acts, and suffers. I am not thought, I am not action, I am not feeling; I am something that thinks, and acts, and suffers. ...that self or I, to which they belong, is permanent... Such are the notions that I have of my personal identity” (EIP 3.4, 264). Here Reid echoes Descartes' operational definition of the self in Meditation 2. Reid also argues that persons are not identical to their bodies (EIP 3.4, 264). (For more on Reid's theories of memory and personal identity, see Reid on Memory and Personal Identity.)