Quote #3
If we consider that all we deal with represents constantly changing sub-microscopic, interrelated processes which are not, and cannot be 'identical with themselves', the old dictum that 'everything is identical with itself' becomes in [today's understanding of the universe] a principle invariably false to facts.' (Note: Korzybski used '1933' to specify the current understanding. This editor has subsituted the 'more general' form: [today's understanding...])