Thus we seem to be on the verge of an expansion of welfare economics into something like a social science of ethics and politics: what was intended to be a mere porch to ethics is either the whole house or nothing at all. In so laying down its life welfare economics may be able to contribute some of its insights and analytical methods to a much broader evaluative analysis of the whole social process.

We are born to love, as we are born to breathe and eat and drink.

Mathematicians themselves set up standards of generality and elegance in their exposition which are a bar to understand.

Integrative power [is] the ultimate power

[The historical] development in the international system may almost be defined as the process by which we pass from stable war to stable peace.

It is almost as hard to define mathematics as it is to define economics, and one is tempted to fall back on the famous old definition attributed to Jacob Viner, "Economics is what economists do," and say that mathematics is what mathematicians do. A large part of mathematics deals with the formal relations of quantities or numbers.

[The loss-of-strength gradient is] the degree to which military and political power diminishes as we move a unit distance away from its home base.