About the Nature of the Subject.

Your consciousness attests of the now; your mind recalls other nows, less distinct as they recede into the past until lost in the hazy dawn of memory. These temporal series, vague and overlapping, you attach to one individual, whom you call I. In the course of a few years, every cell of this individual’s body has changed; his thoughts, judgments, emotions, and aspirations have undergone a similar metamorphosis.What is then this permanence which you designate as I? Surely not the mere name which differentiates this individual from his fellow men! Is it then this temporal series strung like beads on the filament of memory?

- Number: The Language of Sience (Dantzig Tobias)