ssibility of a world-unity first consciously envisaged in the
Greco-Roman world. Greece gives unity in thought, Rome in practice.
Order with a solid intellectual foundation established with the Roman
Empire. In the mediaeval world a unity mainly spiritual is reached in
the same framework. The position of Germany in this development. The
break-up of the fourteenth and fifteenth century. The enlargement of the
known world and the growth of wealth and knowledge. This crisis still
continues and has been recently accentuated by the birth-throes of
nationalities. The supreme problem for international unity is now the
reconciliation of national units with the interests of the whole.
Underneath the superficial turmoil the great unifying forces of science
and of common sentiments continue to grow and will ultimately prevail.

CHAPTER II. UNITY IN PREHISTORIC TIMES

Retrospect of the search for unity in man's affairs, in its political
and scientific bearings.

The Unity of Man as an Animal Species. Ancient beliefs, doubts suggested
by the practice of slavery, their solution, and the modern conception of
a 'Human Family'.

The unity of man as a rational animal struggling against nature for
subsistence. Archaeological evidence as to the reasonableness of
primitive culture on its material side; doubts raised by man's
irrational 'barbarities' on the social plane. Levy Bruhl's hypothesis of
a 'savage logic' and the Greek analysis of wrongdoing as rooted in
ignorance.

Man's struggle with Nature in the N.W. Quadrant of the Old World. Unity
here not to be found in the Food Quest. Prehistoric Europe shows variety
of regimens, hoe-agriculture, pastoral nomadism. The wheel and the
plough and the composite bread and cheese culture.

Race, Language, and Culture as Factors of Unity. The spread of the
European Bread Culture is earlier than that of Indo-European Speech and
probably than that of the 'Alpine' type of man. Race in Europe has led
not to unity but to discord, and linguistic affinity does not ensure
mutual intelligibility.

CHAPTER III. THE CONTRIBUTION OF GREECE AND ROME

Contemporary history is the only genuine and important history, the
present is the only object of historical knowledge; what the present is
and how, properly conceived, it gives history its unity and justifies
the study of what is past (ancient history); all history is _our_
history, and otherwise without meaning or value to us. The history of
classic