The ability to associate depends, in turn, on the degree to which communities share norms and values and are able to subordinate individual interests to those of larger groups.

破坏其土壤的国家就是自取灭亡。

Intelligence is the ability to achieve goals in the world.

"A man who does not think for himself does not think at all."

The first duty of the sovereign， that of protecting the society from the violence and invasion of other independent societies， can be performed only by means of a military force.

We are all travelers in the wilderness of this world, and the best we can find in our travels is an honest friend.