The second requirement of such a location is a strategic position in a crossroads, in a network of transportation and communication.

The third requirement is a readily available source of the food and building materials necessary to feed, house, and clothe a community and provide it with some of the niceties of daily living.

The fourth requirement is the presence of sufficient man-power to operate the nucleus and provide a surplus for defense and for its extension and expansion.

The fifth requirement is defensibility against aggression or invasion.

The sixth essential is the availability of sufficient raw materials to meet the requirements of the nucleus, provide the exports needed to maintain a favorable trade balance for the nucleus and permit of its expansion, advancement and enrichment.

Seventh, and in some ways, the most important requirement for the establishing of an empire or a civilization nucleus, is the presence of a will to live, a will to grow, a will to advance, competence in management, and a dogged persistence that will remain constant through generations or centuries of adversity, and still more demanding, through long periods of security, comfort and affluence.

Eighth, and by no means least important, is the capacity to fight and win the aggressive trade and military wars incidental to the defense and expansion of the nucleus, of the empire, and eventually of the civilization.

The ninth requirement is tolerance, receptivity to new ideas and practices, the capacity to adapt and to assimilate the outside elements which are constantly incorporated into the growing, expanding empire or the civilization.

Finally, as we read the history and observe the development of nuclei, empires and civilizations, we are impressed by the role of outstanding individuals who occupy positions of responsibility over sufficiently long periods or with sufficient intensity to leave a lasting impression on the ideas, practices and institutions of their times.  This requirement covers the practice of effective leadership.

Our concern, at this point, lies primarily with the first eight of these requirements for survival and success in building up empires and civilizations.

Empires and civilizations are established during periods of social expansion when the up-building and out-going urges are widely felt.  The surge produces not a single center of growth and expansion but dozens or scores of competitors, each aiming to win and keep a position well in advance of its rivals.  The resulting up-surge and free-for-all, which usually lasts for centuries, is a characteristic and recurring feature in the political life of every civilization.

This statement is less a requirement for success in organizing the nucleus of a civilization, than a generalization about the natural and social milieu out of which competing nuclei arise.  Success of one among the many competitors is a characteristic feature of the struggle for nuclear survival, development and perhaps for eventual supremacy.