Lev Navrozov (born 1928 in Moscow) is a Russian author, historian and polemicist and father of poet Andrei Navrozov. A leading translator of Russian texts into English under the Soviet regime, Navrozov emigrated to the United States in 1972, where he published a best-selling memoir, The Education of Lev Navrozov, and became a prominent Russian dissident.

Navrozov was born to playwright Andrei Navrozov (after whom his son was named), a founding member of the Soviet Writers’ Union, who volunteered in World War II and was killed in action in 1941. After completing the course at Moscow Power Engineering Institute, did not take the degree, switching to the exclusive Referent Faculty of the Moscow Institute of Foreign Languages, a faculty created by Joseph Stalin's personal order to produce a new generation of experts with a superior knowledge of Western languages and cultures. On graduation in 1953 was offered a "promising position" at the Soviet Embassy in London, with the attendant obligation to join the Communist Party. Declined both offers, and thenceforth refused all government posts or academic affiliations as a matter of principle. Regarded as a unique expert on the English-speaking countries, but only ever worked as a freelance.

Olavo Luiz Pimentel de Carvalho (Campinas, April 29, 1947) is a Brazilian journalist,, and essayist on several issues like the history of astrology and mysticism; the history of revolutionary mentality; and philosophical anthropology, known for his conservative political stances, and for being a vehement critic of leftist.

Now living in the United States in the state of Virginia, he is an international correspondent and writes a weekly column for the Brazilian newspaper Diário do Comércio. He also teaches philosophy on a free course to over 1000 students online. Carvalho has previously written for several other magazines and newspapers, such as Bravo!, Primeira Leitura, O Globo, Época and Zero Hora, and taught philosophy to a smaller circle of students, while still living in Brazil. He also translated to Portuguese works of important philosophers of the 20th century, such as the Romanian Constantin Noica, the Spanish Xavier Zubiri, the French René Guénon, the German-American Eric Voegelin and Leo Strauss. He has commented and developed researches and theories on the works of Aristotle. He has also delivered lectures on his own work and on the work of several of those philosophers mentioned above.