“Nowadays, however, we are much more aware of the fact that the best proof in the world is worth no more than its premises: every scientific theory is transitory and provisional, in wait for a better one, and accepted only as long as the experimental results conform to its predictions.”

— Ivar Ekeland

Source: The Best of All Possible Worlds (2006), Chapter 3, The Least Action Principle, p. 48.

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Ivar Ekeland 18

French mathematician 1944

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Perhaps there is some other way of salvaging the notion of ‘truth’ for application to whole theories, but this one will not do. There is, I think, no theory-independent way to reconstruct phrases like ‘really there’; the notion of a match between the ontology of a theory and its “real” counterpart in nature now seems to me illusive in principle. Besides, as a historian, I am impressed with the implausability of the view. I do not doubt, for example, that Newton’s mechanics improves on Aristotle’s and that Einstein’s improves on Newton’s as instruments for puzzle-solving. But I can see in their succession no coherent direction of ontological development. On the contrary, in some important respects, though by no means in all, Einstein’s general theory of relativity is closer to Aristotle’s than either of them is to Newton’s.
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“A theory is the more impressive, the greater the simplicity of its premises, the more diverse things it connects, and the wider its scope”

Albert Einstein (1879–1955) German-born physicist and founder of the theory of relativity

1940s, "Autobiographical Notes" (1949)
Original: (de) Eine Theorie ist desto eindrucksvoller, je größer die Einfachheit ihrer Prämissen ist, je verschiedenartigere Dinge sie verknüpft, und je weiter ihr Anwendungsbereich ist.

“One can judge from experiment, or one can blindly accept authority. To the scientific mind, experimental proof is all important and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything and facts are junked when they do not fit theory laid down by authority.”

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“Life-Line”, p. 24
The Past Through Tomorrow (1967)
Context: There are but two ways of forming an opinion in science. One is the scientific method; the other, the scholastic. One can judge from experiment, or one can blindly accept authority. To the scientific mind, experimental proof is all important and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything and facts are junked when they do not fit theory laid down by authority.

“A book that reveals the mind is worth more than one that only reveals its subject.”

Joseph Joubert (1754–1824) French moralist and essayist

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David Deutsch book The Fabric of Reality

Source: The Fabric of Reality (1997), Ch. 1

“This fact, that all charges are integral multiples of a fundamental unit, is still one of the unexplained puzzles of fundamental physics. It does not in any way contradict electromagnetic theory, but it is not predicted by it, and until we have a more fundamental theory that explains it, we shall not feel that we really understand electromagnetic phenomena thoroughly. Presumably its explanation will not come until we understand quantum theory more thoroughly than we do at present.”

John C. Slater (1900–1976) American physicist

[John Clarke Slater, Nathaniel Herman Frank, Electromagnetism, Courier Dover Publications, 1969, 0486622630, 11]

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"Why We Need To Understand Science" in The Skeptical Inquirer Vol. 14, Issue 3 (Spring 1990)
Context: Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions. It counsels us to carry alternative hypotheses in our heads and see which ones best match the facts. It urges on us a fine balance between no-holds-barred openness to new ideas, however heretical, and the most rigorous skeptical scrutiny of everything — new ideas and established wisdom. We need wide appreciation of this kind of thinking. It works. It’s an essential tool for a democracy in an age of change. Our task is not just to train more scientists but also to deepen public understanding of science.

“We hunger for a wholeness and express it on every hand. The scientist longs for a "field theory" to unify the fragments of his thought. Ultimate prediction and control are his dream. The theological equivalent expressed long ago as monotheism. The scientific form expresses as an insatiable appetite, an intellectual concupiscence desiring more than the very stars could ever assuage.”

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“The theory is the result of listening to the problem. When the theory acquires a life of its own because some people like it more than the real world, all kinds of uninspiring, uninteresting things happen, so the key is both to listen to the problem and to study the theory. But always remember that just as much theory is bunk as there are buggy solutions. There is nothing more wrong with "theory" than "solutions" – both their quality and their applicability are orthogonal to their existence.”

Erik Naggum (1965–2009) Norwegian computer programmer

Re: "Choose the Right Language" in "Tutorial" by Norvig and Pitman http://groups.google.com/group/comp.lang.lisp/msg/99d41ab4a42978b1 (Usenet article).
Usenet articles, Miscellaneous

“Nowadays, however, we are much more aware of the fact that the best proof in the world is worth no more than its premises: every scientific theory is transitory and provisional, in wait for a better one, and accepted only as long as the experimental results conform to its predictions.”

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Ivar Ekeland 18

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