Every culture, or subculture, is defined by a set of common values, that is, generally agreed upon preferences. Without a core of common values a culture cannot exist, and we classify society into cultures and subcultures precisely because it is possible to identify groups who have common values.

[on the theory of the firm] It is exactly analogous to the analysis of the reactions of a consumer by means of indifferent curves. Indeed, a consumer is merely a 'firm' whose product is 'utility.'

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.

With laissez-faire and price atomic, ecology's uneconomic, But with another kind of logic economy's unecologic.

[The loss-of-strength gradient is] the degree to which military and political power diminishes as we move a unit distance away from its home base.

Private property is a means, and neither its abolition nor its unrestricted right should be an end in itself.

The evolutionary vision is agnostic in regard to systems in the universe of greater complexity than those of which human beings have clear knowledge.