"Science And Sanity" remains the most important book written in the last century, unread by the majority of people, while not understood by some who have.
Alfred Korzybski as a result of his experiences came to formulate a system capable of explaining anomalies which Aristotles's 'logic-methodology'(organon c.350 B.C.), further Francis Bacon's revision(Novum organon,1620) continue to ignor. For example rediscoveries of non-identity: Heraclitus(c.500 B.C.)- one cannot step into the 'same' river twice; infinite-values: Georg Cantor(1874)- finite variables generated between others; non-elementalism: Lao-Tse(c.600 B.C.)- the whole is not the sum of the parts; non-allness: Bertrand Russell(1910)- a proposition about 'all' propositions cannot include itself; etc.
Morpheus when asked 'what is the Matrix'? Replied: "It is the world that has been pulled over your eyes to blind you from the truth". Similarly 'aristotelian-conditionality' codifies 'reality' such that facts become ignored. The 'realities' include the generation of abstractions upon abstractions(for example, use language to speak about language, Josiah Royce 1855-1916; but including the non-verbal perceptions, visualizations , etc), the phenomena causal by noumena(thing(s)-in themselves) the external event(s) of which we confuse assuming as the 'same'. This appears something that Siddhartha Gautama(Buddha) in part realized, for when asked 'what reality was' he simply raised a rose over his head then while smiling said that the rose is forever beyond words.
This book therefore not only becomes fundamental for the philosophic-scientific-enterprise-as-a-whole, it becomes essential even for the 'ordinary person' as an orientation to 'reality'.