The economy of the future might be called the "spaceman economy," in which the earth has become a single spaceship, without unlimited reservoirs of anything.

Theories without facts may be barren, but facts without theories are meaningless.

A world of unseen dictatorship is conceivable, still using the forms of democratic government.

Even personal tastes are learned, in the matrix of a culture or a subculture in which we grow up, by very much the same kind of process by which we learn our common values. Purely personal tastes, indeed, can only survive in a culture which tolerates them, that is, which has a common value that private tastes of certain kinds should be allowed.

Mathematics brought rigor to Economics. Unfortunately, it also brought mortis.

The trouble with taxonomic boxes is... that that they tend to be empty, however beautiful they are on the outside.

I have been gradually coming under the conviction, disturbing for a professional theorist, that there is no such thing as economics - there is only social science applied to economic problems.