Einstein's results again turned the tables and now very few philosophers or scientists still think that scientific knowledge is, or can be, proven knowledge.
Imre LakatosNo experimental result can ever kill a theory: any theory can be saved from counterinstances either by some auxiliary hypothesis or by a suitable reinterpretation of its terms.
Imre LakatosThe positive heuristic of the programme saves the scientist from becoming confused by the ocean of anomalies.
Imre Lakatos