me" or "played me false" or, more bluntly, "I forgot all about that."
Without doubt, Memory is a most vital factor, though not the only one in
mental efficiency.[Footnote: The true ideal of mental efficiency must
include power of Will as well as of Memory.] It is an element in mental
life which puzzles both the specialist in psychology and the layman.
"What is this wonderfully subtle power of mind?" "How do we remember?"
Even the mind, untrained in psychological investigation, cannot help
asking such questions in moments of reflection; but for the psychologist
they are questions of very vital significance in his science. For
Bergson, as psychologist, Memory is naturally, a subject of great
importance. We must note, however, that for Bergson, as metaphysician,
it plays an even more important role, since his study of Memory and
conclusions as to its nature lead him on to a discussion of the relation
of soul and body, spirit and matter. His second large work, which
appeared in 1896, bears the title Matiere et Memoire. For him, Memory is
a pivot on which turns a whole scheme of relationships--material and
spiritual. He wrote in 1910 a new introduction for the English
Translation of this work. He there says that "among all the facts
capable of throwing light on the psycho-physiological relation, those
which concern Memory, whether in the normal or the pathological state,
hold a privileged position."[Footnote: Introduction to Matter and
Memory, p. xii.] Let us then, prior to passing on to the consideration
of the problem of the relation of soul and body, examine what Bergson
has to say on the subject of Memory.

At the outset, we may define Memory as the return to consciousness of
some experience, accompanied by the awareness that it has been present
earlier at a definite time and place.[Footnote: The above is to be taken
as a definition of the normal memory. In a subtle psychological analysis
in the paper entitled Le Souvenir du present et la fausse reconnaissance