I've thought long and hard, for years, about what defines a person. A person is not his social image, as people may have differing views of him. A person is not a string of memories, as memory is fickle. And in my view, a person is not his thoughts, as thoughts may be transmitted from others and hence not all originate from the "self". The best definition of a person that I have found is that a person is the subjective experience of feeling and sensing something in the moment. People don't act, people don't think. They experience actions and thoughts and feelings. This definition is also imperfect because really it actually doesn't make sense to define people and talk about "self" and "other". The truth is that there is a universal consciousness, and we are all one, connected physically, mentally, and spiritually.