Alliances are always weaker in peacetime; alliances tend to become hard and fast and strong when things are going badly... but when things are going … - Oskar Morgenstern

As far as the use of mathematics in economics is concerned, there is an abundance of formulas where such are not needed. They are frequently introduced, one fears, in order to show off. The more difficult the mathematical theorem, the more esoteric the name of the mathematician quoted, the better.

All economic decisions, whether private or business, as well as those involving economic policy, have the characteristic that quantitative and non-quantitative information must be combined into one act of decision. It would be desirable to understand how these two classes of information can best be combined.

Wherever mathematics has entered it has never again been pushed out by other developments. The mathematization of an area of human endeavor is not a passing fad; it is the prime mover of scientific and technological progress.