“As a matter of fact, the adaptability of a program to changes in its objectives (often called maintainability) and to changes in its environment (nowadays called portability) can be measured primarily in terms of the degree to which it is neatly structured.”

— Niklaus Wirth

Program Development by Stepwise Refinement (1971)

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Niklaus Wirth 13

Swiss computer scientist 1934

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“If the system exhibits a structure which can be represented by a mathematical equivalent, called a mathematical model, and if the objective can be also so quantified, then some computational method may be evolved for choosing the best schedule of actions among alternatives. Such use of mathematical models is termed mathematical programming.”

George Dantzig (1914–2005) American mathematician

Source: Linear programming and extensions (1963), p. 2

“This is the moment which I call epiphany. First we recognise that the object is one integral thing, then we recognise that it is an organised composite structure, a thing in fact: finally, when the relation of the parts is exquisite, when the parts are adjusted to the special point, we recognise that it is that thing which it is. Its soul, its whatness, leaps to us from the vestment of its appearance. The soul of the commonest object, the structure of which is so adjusted, seems to us radiant. The object achieves its epiphany.”

James Joyce book Stephen Hero

Stephen Hero (1944)
Context: Now for the third quality. For a long time I couldn't make out what Aquinas meant. He uses a figurative word (a very unusual thing for him) but I have solved it. Claritas is quidditas. After the analysis which discovers the second quality the mind makes the only logically possible synthesis and discovers the third quality. This is the moment which I call epiphany. First we recognise that the object is one integral thing, then we recognise that it is an organised composite structure, a thing in fact: finally, when the relation of the parts is exquisite, when the parts are adjusted to the special point, we recognise that it is that thing which it is. Its soul, its whatness, leaps to us from the vestment of its appearance. The soul of the commonest object, the structure of which is so adjusted, seems to us radiant. The object achieves its epiphany.

“The beginning of wisdom for a programmer is to recognize the difference between getting his program to work and getting it right. A program which does not work is undoubtedly wrong; but a program which does work is not necessarily right. It may still be wrong because it is hard to understand; or because it is hard to maintain as the problem requirements change; or because its structure is different from the structure of the problem; or because we cannot be sure that it does indeed work.”

Michael A. Jackson (1936) British computer scientist

As cited in: Allen Kent, ‎James G. Williams (1995), Encyclopedia of Computer Science and Technology: Volume 32. p. 187
Principles of program design, 1975

“Architecture differs from a work of art, which can be displayed in different settings and the subject-matter, form and meaning will remain unchanged. The physicality of any built structure can be altered over time as additions and alterations are made. Moreover, a building or work of architecture can change its function as it meets the different demands of its occupants, although its exterior appearance may be unaltered. And its meaning may change depending on the nature of the context. This reveals some of the problems of interpreting historic architecture from a modern-day perspective as the physical changes and different cultural contexts transform the object.”

Dana Arnold (1961) Middlessex uni prof

Source: Reading Architectural History (2002), Ch. 1 : Reading the past : What is architectural history?

“It has been called a problem of adaptation. There is a subjective and there is an objective, a self and a not-self. And between this self and the not-self there is incessant irrelation. That which is not-self is a process, always changing. It never tires of adopting new attitudes toward the self. The self also is a process, and hence is continually losing joint, or is in continual danger of losing joint, with its environment. Life, therefore, at best, since in the nature of things it is a struggle and a search, is an enterprise with exasperating lack of sunshine.”

J. Howard Moore (1862–1916)

Source: Better-World Philosophy: A Sociological Synthesis (1899), The Social Problem, pp. 74–75

“Life today is an autopoietic, photosynthetic phenomenon, planetary in scale. A chemical transmutation of sunlight, it exuberantly tries to spread, to outgrow itself. Yet by reproducing, it maintains itself and its past even as it grows. Life transforms to meet the contingencies of its changing environment and in doing so changes that environment. By degrees the environment becomes absorbed into the processes of life, becomes less a static, inanimate backdrop and more and more like a house, nest, or shell—that is, an involved, constructed part of an organic being.”

Lynn Margulis (1938–2011) American evolutionary biologist

What is Life? (1995)

“Belief has its structures, and its symbols change. Its tradition changes. All the relationships within these forms are inter-dependent.”

Muriel Rukeyser (1913–1980) poet and political activist

Source: The Life of Poetry (1949), p. 96
Context: Belief has its structures, and its symbols change. Its tradition changes. All the relationships within these forms are inter-dependent. We look at the symbols, we hope to read them, we hope for sharing and communication. Sometimes it is there at once, we find it before the words arrive, as in the gesture of John Brown, or the communication of a great actor-dancer, whose gesture and attitude will tell us before his speech adds meaning from another source. Sometimes it rises in us sleeping, evoked by the images of dream, recognized in the blood. The buried voices carry a ground music; they have indeed lived the life of our people. In times of perversity and stress and sundering, it may be a life inverted, the poet who leaps from the ship into the sea; on the level of open belief, it will be the life of the tribe. In subjugated peoples, the poet emerges as prophet.

“Unless during the first five years so great a degree of change has been accomplished as to deprive Capitalism of its power, it is unlikely that a Socialist Party will be able to maintain its position of control without adopting some exceptional means, such as the prolongation of the life of Parliament for a further term without an election.”

Stafford Cripps (1889–1952) British politician

Can Socialism come by Constitutional Methods? (1933), p. 2, quoted in Hugh Dalton, The Fateful Years. Memoirs 1931-1945 (London: Frederick Muller Ltd, 1957), p. 151.

“The dinosaurs disappeared because they could not adapt to their changing environment. We shall disappear if we cannot adapt to an environment that now contains spaceships, computers — and thermonuclear weapons.”

Arthur C. Clarke (1917–2008) British science fiction writer, science writer, inventor, undersea explorer, and television series host

Foreword to The Collected Stories (June 2000)
2000s and attributed from posthumous publications

“We shall approach practical objectives through a series of approximations. Keeping the maximization of the rate of return as the central theoretical objective, we shall develop a number of subsidiary objectives (which the economists call proxy variables) which contribute in different ways to improvement in the return and which are also measurable in business practice. A firm which meets high performance in most of its subsidiary objectives will substantially enhance its long-term rate of return. (The defect in our approach is that we cannot prove that the result will be a ‘‘maximum’’ possible overall return.) As will be seen, this road has its own obstacles: the difficulties of long term maximization are replaced by the problem of reconciling claims of conflicting objectives.”

Igor Ansoff (1918–2001) American mathematician

Source: Corporate Strategy, 1965, p. 47; cited in: Graham Kenny, (2012),"From the stakeholder viewpoint: designing measurable objectives", Journal of Business Strategy, Vol. 33 Iss: 6 pp. 40-46

“As a matter of fact, the adaptability of a program to changes in its objectives (often called maintainability) and to changes in its environment (nowadays called portability) can be measured primarily in terms of the degree to which it is neatly structured.”

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Niklaus Wirth 13

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