ry of dimensions is vitally important in life and shows why it
is absolutely essential to take account of dimensions in the study
of life problems.

_ 2 An Outline of the History of the Western European Mind_, by James
Harvey Robinson. The New School for Social Research, New York, 1919.
This little volume gives condensed statements, as in a nutshell, of
the historical developments of the human mind and contains a long
list of the most substantial modern books on historical questions.
All the further historical quotations will be taken from this
exceptionally valuable little book, and for convenience they will
simply be marked by his initials--J. H. R.

3 (J. H. R.) "Late appearance of a definite theory of progress.
Excessive conservatism of primitive peoples. The Greeks speculated
on the origin of things, but they did not have a conception of the
possibility of indefinite progress ... Progress of man from the
earliest time till the opening of the 17th century almost altogether
unconscious.... Fundamental weakness of Hellenic learning. It was an
imposing collection of speculation, opinions, and guesses, which,
however brilliant and ingenious they might be, were based on a very
slight body of exact knowledge, and failed to recognize the
fundamental necessity of painful scientific research, aided by
apparatus. There was no steady accumulation of knowledge to offset
the growing emotional distrust of reason.... Unfulfilled promise of
Hellenistic science. Influence of slavery in checking the
development of science.... The deficiencies of Medieval culture. All
the weaknesses of the Hellenic reasoning, combined with those of the
Christian Fathers, underlay what appeared to be a most logically
elaborated and definitive system of thought. Defects of the
university education.... Little history of Natural science, in our
sense of the word, taught in the universities.... Copernicus, 'De
Revolutionibus Orbium Coelestium.' Libri VI, 1543.... Copernicus'
own introduction acknowledges his debt to ancient philosophers.
Still believed in fixed Starry Sphere. His discovery had little
immediate effect on prevailing notions. Giordano Bruno (1548-1600)
made it his chief business to think out and set forth in Latin and
Italian the implication