τὴν μὲν ἔξω τὰ δʼ ἔσω τὴν θέσιν ἔχειν. σἴτιον δʼ ὅτι τὴν φύσιν ἔχει κοινωνοῦσαν ταῖς φλεψί, καὶ τὰ μὲν τῶν φλεβῶν χάριν, τὰ δʼ οὐκ ἅνευ φλεβῶν ἐστίν.
De partibus animalium. Aristotle. ed. Bernhard Langkavel. United States. 2016.
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