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The term “system” is unquestionably one of the most widely used terms not only in science, but in other areas of human endeavor as well. It is a highly overworked term, which enjoys different meanings under different circumstances and for different people. However, when separated from its specific connotations and uses, the term "system" is almost never explicitly defined.

— George Klir Facets of Systems Science (2001)

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More quotes by George Klir

No classification is complete and perfect for all purposes.

An approach to general systems theory (1969)

Systems science is a science whose domain of inquiry consists of those properties of systems and associated problems that emanate from the general notion of systemhood.

George Klir (2001)

The first stage of the transition from the traditional view to the modem view of uncertainty began in the late 19th century, when physics became concerned with processes at the molecular level.

Fuzzy sets and fuzzy logic (1995)

To select an appropriate fuzzy implication for approximate reasoning under each particular situation is a difficult problem. Although some theoretically supported guidelines are now available for some situations, we are still far from a general solution to this problem.

Fuzzy sets and fuzzy logic (1995)

Applying this approach, systems belonging to different scientific disciplines are investigated in their natural forms. On the basis of experimental results, isomorphic relations between different systems are studied and, finally, some general principles applicable for all systems of a certain class are formulated.

An approach to general systems theory (1969)

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Quote text and notes from Wikiquote: George Klir (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.