If we are to use effectively these abstract models and this descriptive material, we must have a comparable exploration of the criteria for determining what abstract model it is best to use for particular kinds of problems, what entities in the abstract model are to be identified with what observable entities, and what features of the problem or of the circumstances have the greatest effect on the accuracy of the predictions yielded by a particular model or theory.
Milton FriedmanRelated topics
abstract best comparable criterion descriptive exploration model observable problem use circumstancesRelated quotes
His Majesty's Government views with favour the establishment in Palestine of a national home for the Jewish people, and will use their best endeavours to facilitate the achievement of this object, it being clearly understood that nothing shall be done which may prejudice the civil and religious rights of the existing non-Jewish communities in Palestine, or the rights and political status enjoyed by Jews in any other country.
Arthur Balfour
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 Gould
I perfectly understand the particular attention which you pay to the question of nuclear energy, and fully realize the possible dangers and catastrophes which might result for mankind from an irresponsible attitude. In this field my wish is for Iran to put all her efforts towards the peaceful use of atomic energy. We shall continue to co-operate with all the nations of the world to attain this end in the interests of human society.
Muhammad Reza Pahlavi
The focus of all life is its economy, the mode through which every living creature produces its material existence. I know no other criterion for the evaluation of social life except that of social economy. In society, just like anywhere else, the mode of production is the focus around which revolve all the modes of life: in the historical life of conscious beings, it is also the focus of all modes of consciousness.
Moses Hess
Observation and theory get on best when they are mixed together, both helping one another in the pursuit of truth. It is a good rule not to put overmuch confidence in a theory until it has been confirmed by observation. I hope I shall not shock the experimental physicists too much if I add that it is also a good rule not to put overmuch confidence in the observational results that are put forward until they have been confirmed by theory.
Arthur Eddington