sentence: Popper is known for  the idea of empirical falsification.
sentences_before: He is considered one of the most influential philosophers of science of the 20th century, and also wrote on social and political philosophy, especially the evils of totalitarian ideas and politics.
concept_name: popper
headings: Karl Popper
categories: 1902 births 1994 deaths 20th century philosophers People from Vienna British people Companions of Honour Knights Bachelor Fellows of the Royal Society