Karl Popper, "Normal Science and Its Dangers", in Imre Lakatos & Alan Musgrave (eds.), Criticism and the Growth of Knowledge (1970)

In my view the ‘normal’ scientist, as Kuhn describes him, is a person one ought to be sorry for. (According to Kuhn’s views about the history of science, many great scientists must have been ‘normal’; yet since I do not feel sorry for them, I do not think that Kuhn’s views can be quite right.) The ‘normal’ scientist, in my view, has been taught badly. I believe, and so do many others, that all teaching on the University level (and if possible below) should be training and encouragement in critical thinking. The ‘normal’ scientist, as described by Kuhn, has been badly taught. He has been taught in a dogmatic spirit: he is a victim of indoctrination. He has learned a technique which can be applied without asking for the reason why (especially in quantum mechanics). As a consequence, he has become what may be called an applied scientist, in contradistinction to what I should call a pure scientist.

— Karl Popper on Normal science

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "In my view the ‘normal’ scientist, as Kuhn describes him, is a person one ought to be sorry for. (According to Kuhn’s views about the history of science, many great scientists must have been ‘normal’; yet since I do not feel sorry for them, I do not think that Kuhn’s views can be quite right.) The ‘normal’ scientist, in my view, has been taught badly. I believe, and so do many others, that all teaching on the University level (and if possible below) should be training and encouragement in critical thinking. The ‘normal’ scientist, as described by Kuhn, has been badly taught. He has been taught in a dogmatic spirit: he is a victim of indoctrination. He has learned a technique which can be applied without asking for the reason why (especially in quantum mechanics). As a consequence, he has become what may be called an applied scientist, in contradistinction to what I should call a pure scientist." in the context of "Karl Popper, "Normal Science and Its Dangers", in Imre Lakatos & Alan Musgrave (eds.), Criticism and the Growth of Knowledge (1970)" to mean that wisdom is timeless.

Source: Wikiquote: "Normal science" (Quotes) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Karl Popper

About Karl Popper

Sir Karl Raimund Popper (28 July 1902 – 17 September 1994) was an Austrian-British philosopher, academic and social commentator. One of the 20th century's most influential philosophers of science, Popper is known for his rejection of the classical inductivist views on the scientific method in favour of empirical falsification. According to Popper, a theory in the empirical sciences can never be proven, but it can be falsified, meaning that it can (and should) be scrutinised with decisive experiments. Popper was opposed to the classical justificationist account of knowledge, which he replaced with critical rationalism, namely "the first non-justificational philosophy of criticism in the history of philosophy".