The concept of need is often looked upon rather unfavorably by economists, in contrast with the concept of demand. Both, however, have their own strengths and weaknesses. The need concept is criticized as being too mechanical, as denying the autonomy and individuality of the human person, and as implying that the human being is a machine which "needs" fuel in the shape of food, engine dope in the shape of medicine, and spare parts provided by the surgeon.

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

The human condition can almost be summed up in the observation that, whereas all experiences are of the past, all decisions are about the future. It is the great task of human knowledge to bridge this gap and to find those patterns in the past which can be projected into the future as realistic images.

Conflict may be defined as a situation of competition in which the parties are aware of the incompatibility of potential future positions, and in which each party wishes to occupy a position that is incompatible with the wishes of the other.

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

It is much more accurate to identify the factors of production as know-how (that is genetic information structure), energy, and materials, for, as we have seen, all processes of production involve the direction of energy by some know-how structure toward the selection, transportation, and transformation of materials into the product

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.