生存
The anarchic nature of the international system compels states to prioritize their own survival above all else.
The anarchic nature of the international system means that states must rely on self-help to ensure their survival.
Anarchy is the permissive cause of war; it creates an environment in which states have to rely on self-help to ensure their survival.
The minimum content of natural law is necessary for the survival of any society.
It has yet to be proven that intelligence has any survival value.