"He is transported to that curious world of decibels and negative frequencies where filter experts live."

"Methods by which engineers stabilise their mechanisms suggest analogous possibilities for stabilising economic systems."

"When beliefs need some modification, We make it with much trepidation, For our world is then new, And things seem all…"

"Feedback: It is the fundamental principle that underlies all self-regulating systems, not only machines but also the …"

"Already well known to engineers all over the world as a pioneer in the development of automatic control, it may well …"

"The analysis of engineering systems and the understanding of economic structure have advanced since then, and the tim…"

"The ‘theory of control systems’ in engineering is now a well-developed subject, making use of some remarkably powerfu…"

"An economic system is not a linear system, and... this fact stands in the way of the determination of the parameters …"

"The nature of the instability of an unregulated free-enterprise system is only now beginning to be clearly understood…"

"The topic that I have attempted to explore is the usefulness of these notions of the engineer, about feeds-back, harm…"