Biography
Sir Karl Raimund Popper was an Austrian-British philosopher and professor who is regarded as one of the 20th century's greatest philosophers of science. Known for his vigorous defence of liberal democracy and the principles of social criticism that he came to believe made a flourishing open society possible, his political philosophy embraces ideas from all major democratic political ideologies and attempts to reconcile them, namely socialism/social democracy, libertarianism/classical liberalism and conservatism (Wikipedia).
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