Richard Hartshorne (1899–1992) American Geographer
R. Hartshorne (1935) "Recent Developments in Political Geography" The American Political Science Review Vol. 29 (5), p. 585
Hartshorne (1958) "The concept of geography as a science of space, from Kant and Humboldt to Hettner" in: Annals of the Association of American Geographers Vol 48 (2). p. 97
Richard Hartshorne (1899–1992) American Geographer
R. Hartshorne (1935) "Recent Developments in Political Geography" The American Political Science Review Vol. 29 (5), p. 585
Alan O. Ebenstein (1959) American political scientist, educator and author
Hayek's Journey: The Mind of Friedrich Hayek (2003)
Richard Hartshorne (1899–1992) American Geographer
Source: The Nature of Geography (1939), p. 35
African Spir (1837–1890) Russian philosopher
"Le concept de l'absolu, d'où découlent, dans le domaine moral, les lois ou normes morales, constitue, le principe d'identité, qui est la loi fondamentale de la pensée; il en découle les normes logiques qui régissent la pensée dans le domaine de la science."
Source: Words of a Sage : Selected thoughts of African Spir (1937), p. 59 [Hélène Claparède-Spir had underlined - the translator]
Richard Hartshorne (1899–1992) American Geographer
Source: The Nature of Geography (1939), p. 425
Immanuel Kant (1724–1804) German philosopher
Introduction
Idea for a Universal History from a Cosmopolitan Point of View (1784)
Context: Whatever concept one may hold, from a metaphysical point of view, concerning the freedom of the will, certainly its appearances, which are human actions, like every other natural event are determined by universal laws. However obscure their causes, history, which is concerned with narrating these appearances, permits us to hope that if we attend to the play of freedom of the human will in the large, we may be able to discern a regular movement in it, and that what seems complex and chaotic in the single individual may be seen from the standpoint of the human race as a whole to be a steady and progressive though slow evolution of its original endowment.
Richard Hartshorne (1899–1992) American Geographer
Source: The Nature of Geography (1939), p. 22 Introduction: About the historical background of American Geography
Alan MacEachren (1952) American geographer
Source: How Maps Work: Representation, Visualization, and Design (1995), p. 1
Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher
Source: General System Theory (1968), 4. Advances in General Systems Theory, p. 80
Alfred Tarski (1901–1983) Polish-American logician
Introduction to Logic: and to the Methodology of Deductive Sciences. (1941/2013) Tr. Olaf Helmer, pp. 108-110.