“The real problem in speech is not precise language. The problem is clear language. The desire is to have the idea clearly communicated to the other person. It is only necessary to be precise when there is some doubt as to the meaning of a phrase, and then the precision should be put in the place where the doubt exists. It is really quite impossible to say anything with absolute precision, unless that thing is so abstracted from the real world as to not represent any real thing.Pure mathematics is just such an abstraction from the real world, and pure mathematics does have a special precise language for dealing with its own special and technical subjects. But this precise language is not precise in any sense if you deal with real objects of the world, and it is only pedantic and quite confusing to use it unless there are some special subtleties which have to be carefully distinguished.”

" New Textbooks for the "New" Mathematics http://calteches.library.caltech.edu/2362/1/feynman.pdf", Engineering and Science volume 28, number 6 (March 1965) p. 9-15 at p. 14
Paraphrased as "Precise language is not the problem. Clear language is the problem."
Context: The real problem in speech is not precise language. The problem is clear language. The desire is to have the idea clearly communicated to the other person. It is only necessary to be precise when there is some doubt as to the meaning of a phrase, and then the precision should be put in the place where the doubt exists. It is really quite impossible to say anything with absolute precision, unless that thing is so abstracted from the real world as to not represent any real thing.Pure mathematics is just such an abstraction from the real world, and pure mathematics does have a special precise language for dealing with its own special and technical subjects. But this precise language is not precise in any sense if you deal with real objects of the world, and it is only pedantic and quite confusing to use it unless there are some special subtleties which have to be carefully distinguished.

Quote in 'John Cage, For the Birds: John Cage In Conversation with Daniel Charles', London/New York: Marion Boyars, 1981; as quoted in: 'Tàpies: From Within', June ─ November, 2013 - Presse Release, Museu Nacional d’Art de Catalunya (MNAC ), p. 17, note 10
1980s

[Mandis, Steven G., The Real Madrid Way: How Values Created the Most Successful Sports Team on the Planet, 2016, BenBella Books, https://books.google.fi/books/about/The_Real_Madrid_Way.html?id=IEbQDAAAQBAJ&redir_esc=y, 978-1-942952-54-1]
After Cristiano Ronaldo converted the penalty into the right of the net for a record 17th goal in the tournament.
2014 UEFA Champions League Final

Source: The Ancestor's Tale: A Pilgrimage to the Dawn of Evolution

Source: 1980s and later, Models of my life, 1991, p. 302.

Source: A Visit from the Goon Squad

Source: "Quotes", The Great Code: The Bible and Literature (1982), Chapter Three, p. 56

Vol. I, Part 4.
The German Ideology (1845/46)
Context: Communism differs from all previous movements in that it overturns the basis of all earlier relations of production and intercourse, and for the first time consciously treats all natural premises as the creatures of hitherto existing men, strips them of their natural character and subjugates them to the power of the united individuals. Its organisation is, therefore, essentially economic, the material production of the conditions of this unity; it turns existing conditions into conditions of unity. The reality, which communism is creating, is precisely the true basis for rendering it impossible that anything should exist independently of individuals, insofar as reality is only a product of the preceding intercourse of individuals themselves.

Source: Growing Up Absurd (1956), p. 38.