Accounts Quote by Halton Arp

If you can't think of an observation that could disprove a theory, that theory simply isn't scientific.

— Jerry A. Coyne

Difficulties arise when reported observations seem to conflict with 'facts' that the majority of scientists accept as established and immutable. Scientists tend to reject…

— Ian Stevenson

The theory of science which permits and encourages the exclusion of so much that is true and real and existent cannot be considered a…

— Abraham Maslow

We have reached a situation where a theory has been accepted as fact by some, and possible contrary evidence is shunted aside. [This is]…

— Robert Shapiro

I oppose any belief that contradicts experimental evidence as determined by the methods of science. All beliefs not in such contradiction may be considered…

— Alan Lightman

Progress in science comes when experiments contradict theory.

— Richard P. Feynman

“The popular view that scientists proceed inexorably from well-established fact to well-established fact, never being influenced by any unproved conjecture, is quite mistaken. Provided…

— Andrew Hodges

A theory should not attempt to explain all the facts, because some of the facts are wrong

— Francis Crick

“Any account of science which does not explicitly describe it as something we believe in is essentially incomplete and a false pretense. It amounts…

— Richard Rhodes

The common idea that scientists reject a theory as soon as it leads to a contradiction is just not so. When they get something…

— Vannevar Bush

Most people like to believe something is or is not true. Great scientists tolerate ambiguity very well. They believe the theory enough to go…

— Richard Hamming

Given any rule, however "fundamental" or "necessary" for science, there are always circumstances when it is advisable not only to ignore the rule, but…

— Paul Feyerabend