“All systems are receding, not from any particular centre, but from each other: the whole system of galactic systems is expanding.”
Kosmos (1932), Above is Beginning Quote of the Last Chapter: Relativity and Modern Theories of the Universe -->
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Willem de Sitter 44
Dutch cosmologist 1872–1934Related quotes
Source: Complexity and Postmodernism (1998), p. 4-5; as cited in: Peter Buirski, Amanda Kottler (2007) New Developments in Self Psychology Practice http://books.google.nl/books?id=PinroXBLDkIC&pg=PA9, p. 9
Source: Systems Engineering Tools, (1965), p. 8; Cited in: Peter Allen, Steve Maguire, Bill McKelvey (2011) The SAGE Handbook of Complexity and Management. p. 35
At the other extreme is a set of parts that are completely unrelated: that is, a change in each part depends only on that part alone. The variation in the set is the physical sum of the variations of the parts. Such behavior is called independent or physical summativity.
Source: Definition of System, 1956, p. 23

Kosmos (1932), Above is Beginning Quote of the Last Chapter: Relativity and Modern Theories of the Universe -->
Cited in: Harold Chestnut (1967) Systems Engineering Methods. p. 121
A methodology for systems engineering, 1962
Source: General System Theory (1968), 2. The Meaning of General Systems Theory, p. 37