Japanese refer to Europe as a "museum" and America as a "farm." - Robert Gilpin

The relative stability of the system is... largely determined by its capacity to adjust to the demands of the actors affected by changing political and environmental conditions.

The competitive nation-state system, with all its capacity for good and evil, is spreading in the Third World and is transforming that world.

These two opposed forms of social organization, the modern state and the market, have evolved together through recent centuries, and their mutual interactions have become increasingly crucial to the character and dynamics of international relations in our world.