Queen Elizabeth I revoked a thought censorship law in the late sixteenth century, because, according to Sir Francis Bacon, she did "not [like] to make windows into men's souls and secret thoughts". During her reign, philosopher, mathematician, astrologer, and astronomer Giordano Bruno took refuge in England from the Italian Inquisition, where he published a number of his books regarding an infinite universe and topics banned by the Catholic Church. After leaving the safety of England, Bruno was eventually burned as a heretic in Rome for refusing to recant his ideas. For this reason, he is considered by some to be a martyr for free thought. However, freedom of expression can be limited through censorship, arrests, book burning, or propaganda, and this tends to discourage freedom of thought. Examples of effective campaigns against freedom of expression are the Soviet suppression of genetics research in favor of a theory known as Lysenkoism, the book-burning campaigns of Nazi Germany, the radical anti-intellectualism enforced in Cambodia under Pol Pot, the strict limits on freedom of expression imposed by the Communist governments of the People's Republic of China and Cuba or by right-wing authoritarian dictatorships such as those of Augusto Pinochet in Chile and Francisco Franco in Spain. The Sapir–Whorf hypothesis, which states that thought is inherently embedded in language, would support the claim that an effort to limit the use of words of language is actually a form of restricting freedom of thought. This was explored in George Orwell's novel" 1984", with the idea of Newspeak, a stripped-down form of the English language alleged to lack the capacity for metaphor and limiting expression of original ideas. More recently, the development of neuroimaging technologies have raised concerns about entities being able to read and subsequently suppress thought. Although the issue is complicated by the mind-body problem, these concerns form the emerging field of neuroethics and neuroprivacy.  http://www.portagepub.com/dl/caa/sr-lexrex17.pdf? (accessed December 17, 2018, on portagepub.com)