"Pestel was a very forceful person and quickly saw the power of system dynamics."

"No plea about inadequacy of our understanding of the decision-making processes can excuse us from estimating decision…"

"[The engineer] must identify the significant and critical problems, but in his education, problems have been predeter…"

"The enterprise engineer must be a leader, a designer, and a synthesizer. He is a doer. He understands theory as a gui…"

"In concept a feedback system is a closed system. Its dynamic behavior arises within its internal structure. Any actio…"

"Formulating a model of a system should start from the question “Where is the boundary, that encompasses the smallest …"

"In complex systems cause and effect are often not closely related in either time or space. The structure of a complex…"

"The strongest criticism has come from some economists. The objections range from simple misunderstanding, through bel…"

"In spite of the tentative nature of the world model described here, various conclusions are drawn from it. Man acts a…"

"It is to be hoped that those who believe they already have some different model that is more valid will present it in…"