Carl Menger

"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."

"Not only in the realm of the ethical world, and of economy, but also in that of natural phenomena, the realistic orientation of theoretical research can lead only to "real types" and "empirical laws."…"

"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?"

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

"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 under…"

"Carl Menger." The Concise Encyclopedia of Economics. 2008. Library of Economics and Liberty."

"Assuming... that all available goods of higher order are employed in the most economic fashion, the value of a concrete quantity of a good of higher order is equal to the difference in importance betw…"