“It is an empirical rule that living, evolutionary, psychological, social, etc., systems tend toward increasing differentiation and organization.”
Attributed to Bertalanffy (1929) in: Julia Kristeva et al. (1971) Essays in Semiotics. p. 200
1920s
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Ludwig von Bertalanffy 65
austrian biologist and philosopher 1901–1972Related quotes

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Von Bertalanffy (1956) "General System Theory". In: General Systems, Yearbook of the Society for General Systems Research, vol. 1, 1956.
1950s
Source: General System Theory (1968), 8. The System Concept in the Sciences of man, p. 191
Source: In Defense of Chaos: The Chaology of Politics, Economics and Human Action, (2013), p. 348