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.

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

The troubles of the 20th century are not unlike those of adolescence -- rapid growth beyond the ability of organizations to manage, uncontrollable emotion, and a desperate search for identity. Out of adolescence, however, comes maturity in which physical growth with all its attendant difficulties comes to an end, but in which growth continues in knowledge, in spirit, in community, and in love; it is to this that we look forward as a human race. This goal, once seen with our eyes, will draw our faltering feet toward it.

The greater the penalties laid on sellers in the black market... the higher the black market price.

The controversy as to whether socialism is possible has been settled by the fact that it exists, and it is a fundamental axiom of my philosophy, at any rate, that anything that exists, is possible.

As long as man was small in numbers and limited in technology, he could realistically regard the earth as an infinite reservoir, an infinite source of inputs and an infinite cesspool for outputs. Today we can no longer make this assumption. Earth has become a space ship, not only in our imagination but also in the hard realities of the social, biological, and physical system in which man is enmeshed.

[The question for the behavioral disciplines is simply] what is better, and how do we get there?