between
Roman ideals and habits and those of the Graeco-Asiatic civilisation.
The sixth lecture, "The Development of the Empire," summarises in a
few pages views to be developed in detail in that part of my work yet
to be written.

I have said that not all history can be explained by economic forces
and factors, but this does not prevent me from regarding economic
phenomena as also of high importance. The seventh lecture, "Wine in
Roman History," is an essay after the plan in accordance with which,
it seems to me, economic phenomena should be treated.

The last lecture deals with a subject that perhaps does not, properly
speaking, belong to Roman history, but upon which an historian of Rome
ought to touch sooner or later; I mean the role which Rome can still
play in the education of the upper classes. It is a subject important
not only to the historian of Rome, but to all those who are interested
in the future of culture and civilisation. The more specialisation
in technical labour increases, the greater becomes the necessity of
giving the superior classes a general education, which can prepare
specialists to understand each other and to act together in all
matters of common interest. To imagine a society composed exclusively
of doctors, engineers, chemists, merchants, manufacturers, is
impossible. Every one must also be a citizen and a man in sympathy
with the common conscience. I have, therefore, endeavoured to show
in this eighth lecture what services Rome and its great intellectual
tradition can render to modern civilisation in the field of education.

These lectures naturally cannot do more than make known ideas in
general form; it would be too much to expect in them the precision
of detail, the regard for method, and the use of frequent notes,
citations, and references to authorities or documents, that belong
to my larger work on Rome; but they are published partly because I
consider it useful to popularise Roman history, and partly because
some of the pleasantest of memories attach to them. Their origin, the
course on Augustus given at the College de France, which proved one of
the happiest occasions of my life, and their development, leading
to my travels in the two Americas, have given me experiences of the
greatest interest and pleasure.

I am glad of the opportunity here to thank all those who have
contributed to make the sojourn of my wife and myself in the United
States delightful. I must thank all my