“I am for richness of meaning rather than clarity of meaning; for the implicit function as well as the explicit function.”

Source: Evolution: the general theory (1996), p. 28.

100 Years of Mathematics: a Personal Viewpoint (1981)

Source: Beautiful Boy: A Father's Journey Through His Son's Addiction

Language as Conspiracy, p. 277
Everything Is Under Control (1998)
Context: You need the "is of identity" to describe conspiracy theories. Korzybski would say that proves that illusions, delusions, and "mental" illnesses require the "is" to perpetuate them. (He often said, "Isness is an illness.")
Korzybski also popularized the idea that most sentences, especially the sentences that people quarrel over or even go to war over, do not rank as propositions in the logical sense, but belong to the category that Bertrand Russell called propositional functions. They do not have one meaning, as a proposition in logic should have; they have several meanings, like an algebraic function.

Encountering Directors interview (1969)

Introduction, Why Study Economics?, p. 1
Economics For Everyone (2008)

Misc

Source: 1970s and later, Explorations in the functions of language, 1973, p. xiv cited in: Piet Van de Craen (2007) Van Brussel gesproken. p. 118.

Source: Onward Industry!, 1931, p. 46-47