A Quote by Peter Lilley
Scientists would rather change facts than their theories.
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Facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts do not go away while scientists debate rival theories for explaining them. Einstein's theory of gravitation replaced Newton's, but apples did not suspend themselves in mid-air pending the outcome.
Generally speaking, geologists seem to have been much more intent on making little worlds of their own, than in examining the crust of that which they inhabit. It would be much more desirable that facts should be placed in the foreground and theories in the distance, than that theories should be brought forward at the expense of facts. So that, in after times, when the speculations of the present day shall have passed away, from a greater accumulation of information, the facts may be readily seized and converted to account.
Scientific theories need reconstruction every now and then. If they didn't need reconstruction they would be facts, not theories. The more facts we know, the less radical become the changes in our theories. Hence they are becoming more and more constant. But take the theory of gravitation; it has not been changed in four hundred years.
Progress is achieved by exchanging our theories for new ones which go further than the old, until we find one based on a larger number of facts. ... Theories are only hypotheses, verified by more or less numerous facts. Those verified by the most facts are the best, but even then they are never final, never to be absolutely believed.
Difficulties arise when reported observations seem to conflict with 'facts' that the majority of scientists accept as established and immutable. Scientists tend to reject conflicting observations.....Nevertheless, the history of science shows that new observations and theories can eventually prevail.
Were I disposed to consider the comparative merit of each of them [facts or theories in medical practice], I should derive most of the evils of medicine from supposed facts, and ascribe all the remedies which have been uniformly and extensively useful, to such theories as are true. Facts are combined and rendered useful only by means of theories, and the more disposed men are to reason, the more minute and extensive they become in their observations
It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
Facts do not speak for themselves. They speak for or against competing theories. Facts divorced from theories or visions are mere isolated curiosities.
People don't ask for facts in making up their minds. They would rather have one good, soul - satisfying emotion than a dozen facts.
I firmly believe that the method which sets theological theories against scientifically ascertained facts, is fatal to the current theology and injurious to the spirit of religion; and that the method which frankly recognizes the facts of life, and appreciates the spirit of the scientists whose patient and assiduous endeavor has brought those facts to light, will commend the spirit of religion to the new generation, and will benefit--not impair--theology as a science, by compelling its reconstruction.
There will be well-testable theories, hardly testable theories, and non-testable theories. Those which are non-testable are of no interest to empirical scientists. They may be described as metaphysical.
Scientists often have a naive faith that if only they could discover enough facts about a problem, these facts would somehow arrange themselves in a compelling and true solution.
Theories without facts may be barren, but facts without theories are meaningless.
Generally the theories we believe we call facts, and the facts we disbelieve we call theories.
But I'd rather help than watch. I'd rather have a heart than a mind. I'd rather expose too much than too little. I'd rather say hello to strangers than be afraid of them. I would rather know all this about myself than have more money than I need. I'd rather have something to love than a way to impress you.
Methodological naturalism gives advice to scientists about what they should include in their theories. There is a second type of methodological naturalism that gives advice to philosophers, which I call "methodological naturalismp." It says that the methods that philosophers should use in assessing philosophical theories are limited to the methods that scientists ought to use in assessing scientific theories.
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