Ancient Greek text
Περὶ δὲ τοῦ τὰ μὲν εἶναι μακρόβια τῶν ζῴων τὰ δὲ βραχύβια, καὶ περὶ ζωῆς …
Aristotelis Opera, Oxford University Press, Oxford, 1837
Aristotle, De longitudine et brevitate vitae, ed. Immanuel Bekker. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
Texts from The Greek Library and the Perseus Digital Library, under CC BY-SA 4.0 and CC BY 4.0. Divided into reading sections by Interlinea.