William Warren Bartley, III (1934-1990) was an American philosopher. 1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ... This article is about the year. ...

Bartley was a student of Sir Karl Popper and synthesizer of pancritical rationalism. Sir Karl Raimund Popper, CH, KT, MA, Ph. ... Pancritical rationalism (PCR) is a development of critical rationalism and panrationalism originated by William Warren Bartley in his book The Retreat to Commitment. ...

Born in Pittsburgh, Pennsylvania in 1934, he was brought up in a Protestant Christian home. After graduating from Harvard University, he went on to study at the London School of Economics under Sir Karl Popper. City nickname: The Steel City Location in the state of Pennsylvania Founded 1758 Mayor Tom Murphy (Dem) Area  - Total  - Water 151. ... Official language(s) None Capital Harrisburg Largest city Philadelphia Area  Ranked 33rd  - Total 46,055 sq mi (119,283 km²)  - Width 160 miles (255 km)  - Length 280 miles (455 km)  - % water 2. ... Protestantism is a general grouping of denominations within Christianity. ... A Christian is a follower of Jesus, whom they regard as a/the Christ. ... Harvard University campus (old map) Harvard University (incorporated as The President and Fellows of Harvard College) is a private university in Cambridge, Massachusetts. ... The London School of Economics and Political Science, often referred to as the London School of Economics or simply the LSE, is a specialist university and a constituent college of the federal University of London, located on Houghton Street in Central London, off the Aldwych and next to the Royal... Sir Karl Raimund Popper, CH, KT, MA, Ph. ...

Bartley wrote a best-selling biography of Werner Erhard, the founder of est. He also wrote a controversial biography of Ludwig Wittgenstein, claiming the philosopher was homosexual. He edited Lewis Carroll's book Symbolic Logic (see symbolic logic), including the second volume which Carroll had never published. He is perhaps best known today for his work in extending Popperian epistemology, discussed in his book The Retreat to Commitment. John Paul Jack Rosenberg (born September 5, 1935 in Philadelphia, Pennsylvania) and sometimes subsequently known as Werner Hans Erhard is an American businessman and educator. ... Erhard Seminars Training, or est (always in lower-case), was a controversial New Age large group awareness training (LGAT) seminar program, widespread during the 1970s. ... Ludwig Josef Johann Wittgenstein (IPA: ) (April 26, 1889 – April 29, 1951) was an Austrian philosopher who contributed several ground-breaking works to contemporary philosophy, primarily on the foundations of logic, the philosophy of mathematics, the philosophy of language, and the philosophy of mind. ... Since its coinage, the word homosexuality has acquired multiple meanings. ... Lewis Carroll. ... Mathematical logic is a discipline within mathematics, studying formal systems in relation to the way they encode intuitive concepts of proof and computation as part of the foundations of mathematics. ...

Bartley died of cancer on February 5, 1990 before his last book, Unfathomed Knowledge, Unmeasured Wealth: On Universities and the Wealth of Nations went to press. Other works included writing a biography, and editing the collected works, of Friedrich Hayek. The former task was completed after Bartley's death by his colleagues; the latter is still being continued. When normal cells are damaged beyond repair, they are eliminated by apoptosis. ... Friedrich Hayek Friedrich August von Hayek (May 8, 1899 in Vienna – March 23, 1992 in Freiburg) was an Austrian economist and political philosopher, noted for his defense of liberal democracy and free-market capitalism against socialist and collectivist thought in the mid-20th century. ...

Bibliography

• The Retreat to Commitment, 1984