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, and for founding the
LSE's Department of Philosophy. 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 "the first non-justificational philosophy of criticism in the history of philosophy", namely
critical rationalism.
In political discourse, he is known for his vigorous defence of
liberal democracy and the principles of
social criticism that he believed made a flourishing
open society possible. His political thought resides within the camp of Enlightenment rationalism and humanism. He was a dogged opponent of totalitarianism, nationalism, fascism, romanticism, collectivism, and other kinds of (in Popper's view) reactionary and irrational ideas, and identified modern
liberal democracies as the best-to-date embodiment of an
open society.
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