I recall my mother asking in about 1946 what I was and I replied proudly that I was a professor. A decade later she repeated her question and I repeated my answer. "No promotion?" was her comment.

The delicate and intricate pattern of competition and cooperation in the economic behavior of the hundreds of thousands of citizens of Stockholm offers a challenge to the economist that is perhaps as complex as the challenges of the physicist and the chemist.

Mathematics has no symbols for confused ideas.

In 1958, I came to Chicago where I have remained.

Adam Smith had one overwhelmingly important triumph: he put into the center of economics the systematic analysis of the behavior of individuals pursuing their self-interest under conditions of competition.

My teaching began in 1936 at Iowa State College where T. W. Schultz was the department chairman.

My main graduate training was received at the University of Chicago from which I received the Ph.D. in 1938.