Thomas Robert Malthus’ 1798 Essay on the Principle of Population helped change the direction of economics, politics, and the natural sciences with its reasoning and problem solving. The central topic of the essay was the idea, extremely prevalent in the 18th and 19th centuries, that human society was in some way perfectible. According to many thinkers of the time, mankind was on a course of steady improvement with advances set to continuously improve society and life for all. Malthus was a skeptic on this point, and, in a clear example of the skill of reasoning, set about constructing and marshalling a strong argument for a less optimistic view. Central to his argument were the laws of population growth and their relationship to growth in agricultural production; in his view the former would always outstrip the latter. This provided a strong argument that society was limited by finite resources – a closely reasoned argument that continues to influence economists, politicians and scientists today, as well as environmental movements. While Malthus’ proposed solutions have been less influential, they remain an excellent example of problem solving, offering a range of answers to the problem of population growth and finite resources.

The world’s population is now 7.4 billion people, placing ever greater demands on our natural resources. As we stand witness to a possible reversal of modernity’s positive trends, Malthus’s pessimism is worth full reconsideration. This Norton Critical Edition includes: · An introduction and explanatory annotations by Joyce E. Chaplin. · Malthus’s Essay in its first published version (1798) along with selections from the expanded version (1803), which he considered definitive, as well as his Appendix (1806). · An unusually rich selection of supporting materials thematically arranged to promote classroom discussion. Topics include “Influences on Malthus,” “Economics, Population, and Ethics after Malthus,” “Malthus and Global Challenges,” and “Malthusianism in Fiction.” · A Chronology and a Selected Bibliography.

In a new and updated edition of this classic textbook, Henry William Spiegel brings his discussion and analysis of economic thought into the 1990s. A new introductory chapter offering an overall view of the history of economics and a bibliographic survey of the economic literature of the 1980s and early 1990s have been added. Maintaining the link between economics and the humanities, Spiegel's text will continue to introduce students to a wide range of topics in the history of economic thought. From reviews of previous editions: "The history of economic thought to end all histories of economic thought."--Robert D. Patton, Journal of Economic Literature "The book is in the grand tradition of the history of doctrines. It is a history of economic thought broadly conceived--and superbly written to boot. It is not to much to say that Spiegel's book will become and remain a leading text in the field."--Warren J. Samuels, Social Science The author conveys the essence of an idea simply and clearly, yet in a graceful style."--William F. Kennedy, Journal of Economic Literature

C. Wright Mills’s 1959 book The Sociological Imagination is widely regarded as one of the most influential works of post-war sociology. At its heart, the work is a closely reasoned argument about the nature and aims of sociology, one that sets out a manifesto and roadmap for the field. Its wide acceptance and popular reception is a clear demonstration of the rhetorical power of Wright’s strong reasoning skills. In critical thinking, reasoning involves the creation of an argument that is strong, balanced, and, of course, persuasive. In Mills’s case, this core argument makes a case for what he terms the “sociological imagination”, a particular quality of mind capable of analyzing how individual lives fit into, and interact with, social structures. Only by adopting such an approach, Mills argues, can sociologists see the private troubles of individuals as the social issues they really are. Allied to this central argument are supporting arguments for the need for sociology to maintain its independence from corporations and governments, and for social scientists to steer away from ‘high theory’ and focus on the real difficulties of everyday life. Carefully organized, watertight and persuasive, The Sociological Imagination exemplifies reasoned argument at its best.

Michel Foucault’s 1969 essay “What is an Author?” sidesteps the stormy arguments surrounding “intentional fallacy” and the “death of the author,” offering an entirely different way of looking at texts. Foucault points out that all texts are written but not all are discussed as having “authors”. So what is special about “authored” texts? And what makes an “author” different to other kinds of text-producers? From its deceptively simple titular question, Foucault’s essay offers a complex argument for viewing authors and their texts as objects. A challenging, thought-provoking piece, it is one of the most influential literary essays of the twentieth century.

Michael R. Gottfredson and Travish Hirschi’s 1990 A General Theory of Crime is a classic text that helped reshape the discipline of criminology. It is also a testament to the powers of clear reasoning and interpretation. In critical thinking terms, reasoning is all about presenting a solid and persuasive case – and as many people instinctively understand, the most persuasive reasoning is that which bases itself on a single, simple hook. In Gottfredson and Hirschi’s case, this hook was what has come to be known as the “self-control theory of crime” – the idea that the tendency to commit crime is directly related to an individual’s level of self-control. While the dominant schools of thought of the time tended to focus on crime as the product of complex environmental factors, with little attempt to unify different theories, Gottfredson and Hirschi sought to interpret things so as to provide a single overarching concept that explained why crimes of all sorts were committed. Moreover, while other theories of crime concentrated on understanding and explaining specific types of law-breaking, the self-control model could, in Gottfredson and Hirschi’s view, be seen as the basis for understanding the root cause for all crime in all contexts. While such simplicity inevitably attracted as much criticism as agreement, subsequent studies have provided real-world corroboration for the General Theory’s persuasive reasoning.

Frederick Jackson Turner's 1893 essay on the history of the United States remains one of the most famous and influential works in the American canon. That is a testament to Turner's powers of creative synthesis; in a few short pages, he succeeded in redefining the way in which whole generations of Americans understood the manner in which their country was shaped, and their own character moulded, by the frontier experience. It is largely thanks to Turner's influence that the idea of America as the home of a sturdily independent people – one prepared, ultimately, to obtain justice for themselves if they could not find it elsewhere – was born. The impact of these ideas can still be felt today: in many Americans' suspicion of "big government," in their attachment to guns – even in Star Trek's vision of space as "the final frontier." Turner's thesis may now be criticised as limited (in its exclusion of women) and over-stated (in its focus on the western frontier). That it redefined an issue in a highly impactful way – and that it did so exceptionally eloquently – cannot be doubted.

Few works can claim to form the foundation stones of one entire academic discipline, let alone two, but Thucydides's celebrated History of the Peloponnesian War is not only one of the first great works of history, but also the departure point from which the modern discipline of international relations has been built. This is the case largely because the author is a master of analysis; setting out with the aim of giving a clear, well-reasoned account of one of the seminal events of the age – a war that resulted in the collapse of Athenian power and the rise of Sparta – Thucydides took care to build a single, beautifully-structured argument that was faithful to chronology and took remarkably few liberties with the source materials. He avoided the sort of assumptions that make earlier works frustrating for modern scholars, for example seeking reasons for outcomes that were rooted in human actions and agency, not in the will of the gods. And he was careful to explain where he had obtained much of his information. As a work of structure – and as a work of reasoning – The History of the Peloponnesian War continues to inspire, be read and be taught more than 2,000 years after it was written.

Alexis de Tocqueville’s 1838 Democracy in America is a classic of political theory – and of the problem-solving skills central to putting forward political ideas. Problem-solving has several aspects: identifying problems, finding methodologies to deal with them, and applying the right criteria to work out how to solve them. Indeed, offering solutions is only the last stage in a developed process of problem solving. For Tocqueville, the problem at hand was how best to run a democratic state. In the early 19th century, it seemed clear that Europe was headed in the direction of democracy, but in the wake of the French Revolution, it was unclear how to avoid the many pitfalls on that road. Tocqueville therefore turned to America, then point the most established democracy in the world, to investigate the institutions that allowed it to run as a successful state – allowing people their say while preventing both the possible “tyranny of the majority” and the uncontrolled growth of government. Tocqueville’s careful analysis of the strengths of American democracy was then applied to the problems of instituting democracy in France, providing a range of solutions that proved deeply influential in European political thought.