The time period lying between command of goods of a higher order and possession of the corresponding goods of lower order can never be eliminated. - Carl Menger

There is no better means of reducing a fallacious variety of thought to absurdity than to let it live itself out completely.

How can it be that institutions which serve the common welfare and are extremely significant for its development come into being without a common will directed toward establishing them?

The solution of the most important problems of the theoretical social sciences in general and of theoretical economics in particular is thus, closely connected with the question of theoretically understanding the origin and change of 'organically' created social structures.