Or imagine that it was usual for a man to have two characters,
in this way: His shape, size, and characteristics of
behaviour sometimes changed unaccountably. It is the
usual thing that a man has two such states, and he lapses
suddenly from one into the other. It is very likely that
in such a
104.
case we should be inclined
to christen every man with two names, and perhaps to talk of the
pair of persons in his body. Now were
Dr.
Jekyll and
Mr.
Hyde two
persons or were they the same person who merely changed?
We can say whichever we like. We are not forced to
talk of a double personality.