Diotimos Library · Greek Antiquity Collection · Bilingual Edition
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Facing Pages · Branch 218 of 879
Book I Chapter 19 · I.19.1.5–I.19.1.6
Ancient Greek
p. 4321 ⟨Ἀετίου⟩ · Ἀριστοτέλης
Ἀριστοτέλης τὴν κίνησιν ἐνέργειαν εἶναι τοῦ δυνάμει κινητοῦ ᾗ κινητόν. Τῶν δὲ κινήσεων τὰς μὲν εἶναι κατὰ τὸ ποσόν, τὰς δὲ κατὰ τὸ ποιόν, τὰς δὲ κατὰ τόπον. Κατὰ μὲν τὸ ποσὸν αὔξησιν καὶ μείωσιν, ἐν προσθέσει τινὶ θεωρουμένην καὶ ἀφαιρέσει· κατὰ δὲ τὸ ποιὸν ἀλλοίωσιν καὶ μεταβολήν, ὡς τὴν ἐκ θερμοῦ εἰς ψυχρόν, ἐκ γλυκέος εἰς πικρόν· κατὰ δὲ τόπον, ἣν ἰδιώτερον φορὰν ὠνόμασε, καθ’ ὃν ἐξ οὗ εἰς ὃ μεταβαίνει τὰ κινούμενα.
1 ⟨Ἀετίου⟩ · 6
Ταύτης δὲ τρεῖς εἶναι διαφοράς, ὧν δύο μὲν ἁπλᾶς, τήν τε κατ’ εὐθεῖαν καὶ τὴν ἐν κύκλῳ, μίαν δὲ μικτήν· ⟨κατ’⟩ εὐθεῖαν μὲν τὴν ἄνω καὶ κάτω κατά τε κουφότητα καὶ βαρύτητα τῶν σωμάτων, ἐν κύκλῳ δὲ τὴν περιφερῆ, μικτὴν δὲ τὴν κατ’ ἔγκλισιν· τῆς δὲ κατὰ τόπον κινήσεως τὴν μὲν ἀπὸ τοῦ μέσου γίνεσθαι, τὴν δὲ ἐπὶ τὸ μέσον, τὴν δὲ περὶ τὸ μέσον· πυρὸς μὲν οὖν καὶ ἀέρος ἀπὸ τοῦ μέσου, γῆς καὶ ὕδατος ἐπὶ τὸ μέσον, τοῦ πέμπτου [ὅλου] περὶ τὸ μέσον. Τούτοις δὲ πληροῦσθαι τὸν ὅλον κόσμον.
Stobaeus, Volume I: Book I Chapter 19
p. 4331 ⟨Aëtius⟩: Aristotle on actuality
Aristotle held that motion is the actuality of what is potentially movable, insofar as it is movable.529 Some motions concern quantity, others quality, and others place. In quantity there are increase and decrease, observed in some addition and subtraction; in quality, alteration and change, as from hot to cold or sweet to bitter; and in place, the motion he more specifically called locomotion, in which moving things pass from one place to another.530
1 ⟨Aëtius⟩: Paths and elements
There are three varieties of locomotion, two simple, straight and circular, and one mixed. Motion ⟨along⟩ a straight line is upward or downward according to the lightness or weight of bodies; circular motion goes round; mixed motion is oblique.531 Locomotion proceeds either away from the center, toward the center, or around the center: fire and air move away from it, earth and water toward it, and the fifth [whole] around it. With these the entire world is filled.532
Socrates
Reading Stobaeus, Volume I · Book I Chapter 19 · I.19.1.5–I.19.1.6
Ask about a concept, passage, contradiction, or connection.
Socrates will begin with this book and its sources.About This Reading Edition
Stobaeus gathered Greek philosophy and poetry for his son Septimius. Volume I presents the dedication testimony, On Arithmetic, Book I through chapter 60, and the ancient contents of all four books. This complete bilingual edition includes an introduction and 2,117 explanatory notes.
Historical Text and Translation
The Greek follows Curt Wachsmuth’s 1884 Volume I, checked against the supplied scan. Gaps, lost-chapter headings, and uncertain attributions remain visible. Chapter 2 includes a labeled proposed reconstruction. The appendix outlines Books I–IV; the full texts of Books II–IV are outside this volume. Reader pages preserve the companion PDF’s numbering.
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Diotimos Editions prepared this independent English translation directly from the Greek. Prose and verse retain their distinct forms, with mixed passages preserving their quoted verse. Every passage is paired with its Greek and identified by the edition’s reference number. All 2,117 notes remain linked to their passages, with continuous numbering across the introduction and text.
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