Liberties conflict with one another, and almost any policy whatever can be represented as a defence — direct or indirect — of some sort of liberty. W… - J. L. Mackie

Does the right of a nation as it is at present to its territory include the right to forbid or to limit immigration, or to deny full citizenship to immigrants and even to the locally born children of immigrants? Obviously this raises the question just what is to count over time as the same nation.

On an assumption that the normal and proper state of affairs is that people should live as members of various circles, larger and smaller, with different kinds and degrees of cooperation, competition, and conflict in these different circles, the appropriateness of telling the truth becomes disputable. Truth-telling naturally goes along with cooperation; it is not obviously reasonable to tell the truth to a competitor or an enemy.

Life is, fortunately, not a continuous application of game theory.