When scientists need to explain difficult points of theory, illustration by hypothetical example - rather than by total abstraction - works well (perhaps indispensably) as a rhetorical device. Such cases do not function as speculations in the pejorative sense - as silly stories that provide insight into complex mechanisms - but rather as idealized illustrations to exemplify a difficult point of theory. (Other fields, like philosophy and the law, use such conjectural cases as a standard device.)
Stephen Jay GouldRelated topics
abstraction complex example hypothetical illustration law need pejorative perhaps point rhetorical sense silly use well works Fields pointsRelated quotes
Hayek's theory of evolutionary rationality shows how traditions and customs (those surrounding sexual relations, for example) might be reasonable solutions to complex social problems, even when, and especially when, no clear rational grounds can be provided to the individual for obeying them. These customs have been selected by the ‘‘invisible hand'' of social reproduction, and societies that reject them will soon enter the condition of ‘‘maladaptation,'' which is the normal prelude to extinction.
Roger Scruton
Multiple discoveries are in fact very common in science and for much the same reason. Developments in related fields with different motivation help one to understand a difficult problem better. Since these developments are public knowledge, many scholars can take advantage of them. It is pleasant to the ego to be first or among the first with a new discovery. However, in this case at least, the evidence is clear that the development of general equilibrium theory would have gone on quite as it did without me.
Kenneth Arrow
But a theory is not like an airline or bus timetable. We are not interested simply in the accuracy of its predictions. A theory also serves as a base for thinking. It helps us to understand what is going on by enabling us to organize our thoughts. Faced with a choice between a theory which predicts well but gives us little insight into how the system works and one which gives us this insight but predicts badly, I would choose the latter, and I am inclined to think that most economists would do the same.
Ronald Coase
I would rather die having spoken in my manner, than speak in your manner and live. For neither in war nor yet in law ought any man use every way of escaping death. For often in battle there is no doubt that if a man will throw away his arms, and fall on his knees before his pursuers, he may escape death, if a man is willing to say or do anything. The difficulty, my friends, is not in avoiding death, but in avoiding unrighteousness; for that runs deeper than death.
Socrates
Human history, like all great movements, was cyclical, and returned to the point of beginning. the idea of indefinite progress in a right line was a chimera of the imagination, with no analogue in nature. The parabola of a comet was perhaps a better illustration of the career of humanity. Tending upward and sunward from the aphelion of barbarism, the race attained the perihelion of civilization only to plunge downward once more to its nether goal in the regions of chaos.
Edward Bellamy