 References in the text to the books of Aristotle’s Metaphysics are given by Greek letter. In order (with the corresponding Roman numeral given in parentheses) these are: Α (I), α (II), Β (III), Γ (IV), Δ (V), Ε (VI), Ζ (VII), Η (VIII), Θ (IX), I (X), Κ (XI), Λ (XII), Μ (XIII), Ν (XIV). Translations are taken from Reeve (2016).