自身
The anarchic nature of the international system compels states to prioritize their own survival above all else.
The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.
A legal system is a system of rules which are valid according to the system's own criteria of validity.
A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.
The strength of liberal democracy lies in its ability to adapt and reform itself.
Strength does not come from physical capacity. It comes from an indomitable will.