Part III, Section 31
Principles of Philosophy of the Future http://www.marxists.org/reference/archive/feuerbach/works/future/index.htm (1843)
“We have travelled far from the standpoint which identifies the real with the concrete. Even the older philosophy found it necessary to admit exceptions; for example, time must be admitted to be real, although no one could attribute to it a concrete nature.”
III, p.33
Science and the Unseen World (1929)
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Arthur Stanley Eddington 105
British astrophysicist 1882–1944Related quotes
"Mathematics without foundations"
Source: Philosophical Papers Volume 1: Mathematics, Matter, and Method (1975, 1979)
Context: (If we identify sets with the points that represent them in the various possible concrete structures, we might say: it is not possible for all possible sets to exist in any one world!) Yet set theory does not become impossible. Rather, set theory becomes the study of what must hold in, e.g. any standard model for Zermelo set theory.
Source: Game Theory and Canadian Politics (1998), Chapter 2, Game Theory, p. 30.
Spirit has arrived at the age of maturity...
Quote in 'Comments on the basic of concrete painting', Paris, January 1930, in 'Art Concret', April 1930, pp. 2–4
1926 – 1931
quoted in 'Abstract Art', Anna Moszynska, Thames and Hudson 1990, p. 107
Hans Arp used some years earlier already this new term: 'concrete art' as a rejection of the term 'abstract art'
1920 – 1926
The Meaning of the Trinity http://www.unification.net/1958/580103.html, (1958-01-03)
In an interview, April 9, 1995, about his efforts at persuading telecommunications companies to use optical fibers, as quoted by [Jeff Hecht, City of light: the story of fiber optics, Oxford University Press, 2004, 0195162552, 117]