xii EDITOR'S FOREWORD
the meaning of the world. It may connote something more as well, a
unified, actively developing synthesis of value-enduing views on the world
and man's place in it together with a picture of the natural world.1
The term "world picture" (Weltbild) was and is occasionally used inter
changeably with "worldview," but to natural scientists it usually means
something more precise:2 an ideal, synthetic construct of concepts and
theorems that ultimately encompasses all physical phenomena. Although
the concepts of worldview and world picture are particularly appropriate
to the German cultural sphere, they may be extended usefully beyond it.
The German theoretical physicist Woldemar Voigt likened the world
pictures of scientists to the worldviews of philosophers and theologians;
world pictures are working hypotheses that render the world comprehen
sible and make fruitful work possible.3 In the same vein the German
theoretical physicist Max Planck contended that although world pictures
cannot be proved scientifically, scientists are deprived of a major source of
scientific creativity if they are not committed to one.4 If, as Planck
1The theoretical physicist Max Planck argued that just as a viable worldview cannot
be based wholly on science, neither can it stand apart from science ("Ansprache,"
Sitzungsberichte, Akademie der Wissenschaften, Berlin [1913], part 1, pp. 73-76,
especially p. 75).
For an influential discussion of "worldviews," see Dilthey's Philosophy of Exis
tence: Introduction to Weltanschauungslehre, trans. W. Kluback and M. Weinbaum
(New York, 1957); see in particular Dilthey's discussion of the relation of world-
views to values and willed actions on pp. 25-27.
2The theoretical physicist Paul Volkmann, who believed that the proper ground
for the cooperation of science and philosophy was not worldviews but methodology
and epistemology (Die materialistische Epoche des neunzehnten Jahrhunderts und
die phdnomenologisch-monistische Bewegung der Gegenwart [Leipzig, 1909], p. 23),
commended the zoologist Ernst Haeckel's recent use of the "happier expression
Weltbild instead of Weltanschauung" in connection with Darwin and Lamarck
(Erkenntnistheoretische Grundzuge der Naturwissenschaften und ihre Beziehungen
zum Geistesleben der Gegenwart, 2nd ed. [Leipzig, 1910], p. 236). When physicists
spoke of "world picture" (Weltbild) they usually were not making a statement about
the "true world" or "physical reality," but about a "picture" or "sign" of that
world. "Worldview" (Weltanschauung) signified more than this in going beyond what
the natural sciences could say about the world. For the distinction between Weltbild
and Weltanschauung see, e.g., Rudolf Eisler, ed., Worterbuch der philosophischen
Begriffe, 4th rev. ed., 3 (Berlin, 1930), 506-508; Heinrich Schmidt, ed., Philo-
sophisches Worterbuch, new ed. (New York, 1945), pp. 456-457; Walter Brugger,
ed., Philosophisches Worterbuch, 5th ed. (Freiburg, 1953), pp. 370-371.
3Woldemar Voigt, "Ueber Arbeitshypothesen," Nachrichten von der konigl.
Gesellschaft der Wissenschaften zu Gottingen, Math.-physik. Klasse (1905), pp. 114-
115.
4Max Planck, "New Paths of Physical Knowledge" (1913), in Planck, A Survey of
Physical Theory, trans. R. Jones and D. H. Williams (New York, 1960), pp. 45-55,
especially p. 54.