Academic freedom is the conviction that the freedom of inquiry by faculty members is essential to the mission of the academy as well as the principles of academia, and that scholars should have freedom to teach or communicate ideas or facts (including those that are inconvenient to external political groups or to authorities) without being targeted for repression, job loss, or imprisonment.cientists, freely making their own choice of problems and pursuing them in the light of their own personal judgment, are in fact co-operating as members of a closely knit organization. Academic freedom is the conviction that the freedom of inquiry by faculty members is essential to the mission of the academy as well as the principles of academia, and that scholars should have freedom to teach or communicate ideas or facts (including those that are inconvenient to external political groups or to authorities) without being targeted for repression, job loss, or imprisonment. Academic freedom is a contested issue and, therefore, has limitations in practice. In the United States, for example, according to the widely recognized '1940 Statement on Academic Freedom and Tenure' of the American Association of University Professors, teachers should be careful to avoid controversial matters that are unrelated to the subject discussed. When they speak or write in public, they are free to express their opinions without fear from institutional censorship or discipline, but they should show restraint and clearly indicate that they are not speaking for their institution. Academic tenure protects academic freedom by ensuring that teachers can be fired only for causes such as gross professional incompetence or behavior that evokes condemnation from the academic community itself. Although the notion of academic freedom has a long implicit history (Leiden University, founded in 1575, birthplace of the modern concept), the idea was first clearly formulated in response to the encroachments of the totalitarian state on science and academia in general for the furtherance of its own goals. For instance, in the Soviet Union, scientific research was brought under strict political control in the 1930s. A number of research areas were declared 'bourgeois pseudoscience' and forbidden, notably genetics (see 'Lysenkoism') and sociology. The trend toward subjugating science to the interests of the state also had proponents in the West, including the influential Marxist John Desmond Bernal, who published The Social Function of Science in 1939. In contrast to this approach, Michael Polanyi argued that a structure of liberty is essential for the advancement of science – that the freedom to pursue science for its own sake is a prerequisite for the production of knowledge through peer review and the scientific method. In 1936, as a consequence of an invitation to give lectures for the Ministry of Heavy Industry in the USSR, Polanyi met Bukharin, who told him that in socialist societies all scientific research is directed to accord with the needs of the latest five-year plan. Demands in Britain for centrally planned scientific research led Polanyi, together with John Baker, to found the influential Society for Freedom in Science. The society promoted a liberal conception of science as free enquiry against the instrumental view that science should exist primarily to serve the needs of society. In a series of articles, re-published in The Contempt of Freedom (1940) and The Logic of Liberty (1951), Polanyi claimed that co-operation amongst scientists is analogous to the way in which agents co-ordinate themselves within a free market. Just as consumers in a free market determine the value of products, science is a spontaneous order that arises as a consequence of open debate amongst specialists. Science can therefore only flourish when scientists have the liberty to pursue truth as an end in itself: Proponents of academic freedom believe that the freedom of inquiry by students and faculty members is essential to the mission of the academy. They argue that academic communities are repeatedly targeted for repression due to their ability to shape and control the flow of information. When scholars attempt to teach or communicate ideas or facts that are inconvenient to external political groups or to authorities, they may find themselves targeted for public vilification, job loss, imprisonment, or even death. For example, in North Africa, a professor of public health discovered that his country's infant mortality rate was higher than government figures indicated. He lost his job and was imprisoned. The fate of biology in the Soviet Union is also cited as a reason why society has an interest in protecting academic freedom. A Soviet biologist Trofim Lysenko rejected Western science – then focused primarily on making advances in theoretical genetics, based on research with the fruit fly (Drosophila melanogaster) – and proposed a more socially relevant approach to farming that was based on the collectivist principles of dialectical materialism. (Lysenko called this 'Michurinism', but it is more popularly known today as Lysenkoism.) Lysenko's ideas proved appealing to the Soviet leadership, in part because of their value as propaganda, and he was ultimately made director of the Soviet Academy of Agricultural Sciences. Subsequently, Lysenko directed a purge of scientists who professed 'harmful ideas', resulting in the expulsion, imprisonment, or death of hundreds of Soviet scientists. Lysenko's ideas were then implemented on collectivised farms in the Soviet Union and China. Famines that resulted partly from Lysenko's influence are believed to have killed 30 million people in China alone. AFAF (Academics For Academic Freedom) of the United Kingdom is a campaign for lecturers, academic staff and researchers who want to make a public statement in favour of free enquiry and free expression. Their statement of Academic Freedom has two main principles: