Note 28 — Life, and Length of Days.

One may well say of a given individual, that he lives and is the same, and is spoken of as an identical being from his earliest infancy to old age, without reflecting that he does not contain the same particles, which are produced and renewed unceasingly, and die also in the old state, in the hair and in the flesh, in the bone and in the blood,—in a word, in the whole body.—Plato; The Banquet.