The alcoholic and the drug addict harm only themselves by their behavior; the person who violates the rules of morality governing mans life in society harms not only himself, but everyone.

The comparatively greater prosperity of the United States is an outcome of the fact that the New Deal did not come in 1900 or 1910, but only in 1933.

If people do not consume their whole incomes, the non-consumed surplus can be invested, it increases the amount of capital goods available and thereby makes it possible to embark upon projects which could not be executed before.

Changes in human conditions are brought about by the pioneering of the cleverest and most energetic men. They take the lead and the rest of mankind follows them little by little.

People do not cooperate under the division of labor because they love or should love one another. They cooperate because this best serves their own interests. Neither love nor charity nor any other sympathetic sentiments but rightly understood selfishness is what originally impelled man to adjust himself to the requirements of society, to respect the rights and freedoms of his fellow men and to substitute peaceful collaboration for enmity and conflict.

Thus, the isolated interference with one or a few prices of consumer goods always bring about effects-and this is important to realize-which are even less satisfactory than the conditions that prevailed before.

Behaviorism proposes to study human behavior according to the methods developed by animal and infant psychology. It seeks to investigate reflexes and instincts, automatisms and unconscious reactions. But it has told us nothing about the reflexes that have built cathedrals, railroads, and fortresses, the instincts that have produced philosophies, poems, and legal systems, the automatisms that have resulted in the growth and decline of empires, the unconscious reactions that are splitting atoms.