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Tadeusz Kotarbiński

Tadeusz Kotarbiński
Tadeusz Kotarbiński.jpg
Born 31 March 1886
Warsaw, Congress Poland, Russian Empire
Died 3 October 1981 (aged 95)
Warsaw, People's Republic of Poland
Nationality Polish
Alma mater Jagiellonian University
Lvov University (PhD)
Era 20th century philosophy
Region Western philosophy
School Lwów–Warsaw school of logic
Institutions Warsaw University
Notable ideas
Reism, logology

Tadeusz Kotarbiński (Polish: ['kotarbiński]; 31 March 1886 – 3 October 1981), was a Polish philosopher, logician and ethicist.

A pupil of Kazimierz Twardowski, he was one of the most representative figures of the Lwów–Warsaw School, and a member of the Polish Academy of Learning (PAU) as well as the Polish Academy of Sciences (PAN). He developed philosophical theory called reism (Polish: reizm) and an ethical system called independent ethics. Kotarbiński also contributed significantly to the development of praxeology.

Henryk Greniewski () and Kazimierz Pasenkiewicz () have been doctoral students of Kotarbiński.

Tadeusz Kotarbiński was born on 31 March 1886 in Warsaw, then Congress Poland, Russian Empire, into an artist's family. His father, Miłosz Kotarbiński, was a painter and a composer; his mother, Ewa de domo Koskowska, a pianist. His uncles were - Józef Kotarbiński, an important figure in Polish theater circles and Wilhelm Kotarbiński - a talented painter. Expelled from secondary school in 1905 for participating in a strike, Kotarbiński managed to graduate two years later. He studied first as an unenrolled student at Jagiellonian University in Kraków, attending mostly lectures on mathematics and physics; then architecture in Lvov and Darmstadt, to finally settle for studies in philosophy and classical philology at the Lvov University. His professors were some of the most esteemed philosophers, logicians and mathematicians of his time: Kazimierz Twardowski, Jan Łukasiewicz, Władysław Witwicki and philologist Stanisław Witkowski. He received his PhD degree with the thesis "Utilitarianism in the ethics of Mill and Spencer" in 1912.


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