"The aims of General Systems Theory: a) There is a general tendency towards integration in the various sciences: natural and social. b) Such integration seems to be centered in a general theory of systems. c) Such theory may be an important means for aiming at exact theory in the non-physical fields of science.(1956, d) Developing unifying principles running “vertically” through the universes of the individual sciences, this theory brings us nearer to the goal of unity of science."