في اعتراف المحدثين بصعوبة المقالة السابعة أو مقالة الزاي
"Having had at least ten different opinions on virtually every sentence I am not naive enough to suppose that the views I express here will be my final ideas of vii and viii."
(M.loux,1990, xi)
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"The central books of the Metaphysics have been regarded as the most mature and fundamental texts, but they are notoriously difficult. Indeed, almost everything said in these books is open to various interpretations and debates, and the scholarship on these books is marked by numerous controversies and debates."
-The structure of being in Aristotle's metaphysics-
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"The difficulty is not just in the words, but in the effort of thought required to follow Aristotle as he pushes the concept of 'substance' to its very breaking point."
-Aristotle: The Desire to Understand-
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"Even after decades of intense scrutiny by the best minds in the field, Book Z remains a puzzle, with its central question—'What is substance?'—receiving an answer that is as elusive as it is profound."
-"Aristotle's Metaphysics" Stanford Encyclopedia of Philosophy-
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"Aristotle's language in Book Z is not 'technical' in our sense, but deeply strange; he uses ordinary words in ways that force us to rethink the very fabric of reality, which is why it feels so impenetrable"
-Aristotle's Metaphysics (Translation and Commentary by Joe Sach)-