Pseudo-Galen, what is a soul and what is a body?

“29. According to Plato, soul is a self-moving incorporeal substance. According to the Stoics, however, it is a subtle body moving out of itself according to seminal principles, while according to Aristotle, it is the actuality of a natural instrumental body potentially having life. Alternatively, soul is pneuma distributed through the whole body, through which we live and reason and act by means of the other senses, the body being its servant.*

30. Body is magnitude three times extended, having in itself height, depth and breadth.** Or, it is magnitude composed of three dimensions.”

κθʹ. ψυχή ἐστιν οὐσία ἀσώματος, αὐτοκίνητος κατὰ Πλάτωνα. κατὰ δὲ τοὺς Στωϊκοὺς σῶμα λεπτομερὲς ἐξ ἑαυτοῦ κινούμενον κατὰ σπερματικοὺς λόγους. κατὰ δὲ τὸν Ἀριστοτέλη ἐντελέχεια σώματος φυσικοῦ ὀργανικοῦ δυνάμει ζωὴν ἔχοντος. ἄλλως. ψυχή ἐστι πνεῦμα παρεσπαρμένον ἐν ὅλῳ τῷ σώματι δι' οὗ ζῶμεν καὶ λογιζόμεθα καὶ ταῖς λοιπαῖς αἰσθήσεσιν ἐνεργοῦμεν ὑπηρετοῦντος τοῦ σώματος.

λʹ. σῶμά ἐστι μέγεθος τριχῇ διάστατον ἔχον ἐν ἑαυτῷ μῆκος, βάθος, πλάτος. ἢ μέγεθος ἐκ τριῶν διαστημάτων συνεστηκός.

[Galen], Medical Definitions 29 and 30, 19.355–356 K

*cf. Anonymus Londinensis:

“‘Soul’ is said in three ways: that which pervades the whole body, and the rational part, and further the entrecheia (i.e., ἐντελέχεια, probably).”

ψυχὴ δὲ λέγεται τριχῶς·
[ἥ τε] τῶι ὅλωι σώματι παρεσπαρ-
μ̣ένη καὶ τὸ μόριον τὸ λογιστικὸν
[κ]αὶ ἔτι ἡ ἐντρέχεια. * καὶ τῆς μ(ὲν) ἐντρε-
[χ]είας ἐπὶ τοῦ παρόντος οὐ χρῄζομεν,
[τ]ῶν δὲ ἄλλων δύο σημαινομένων,
[κα]ὶ μᾶλλον το̣ῦ λο̣γιστ̣ικοῦ.

Anonymus Londinensis I,21-24

**Cf. Apollodorus ap. Diogenes Laertius:

“Body is defined by Apollodorus in his Physics as that which is extended in three dimensions, length, breadth, and depth. This is also called solid body.”

σῶμα δ’ ἐστίν, ὥς φησιν Ἀπολλόδωρος ἐν τῇ Φυσικῇ, τὸ τριχῆ διαστατόν, εἰς μῆκος, εἰς πλάτος, εἰς βάθος· τοῦτο δὲ καὶ στερεὸν σῶμα καλεῖται.

Diog. Laert. 7.175

Pseudo-Galen, what is a heart?

“The heart is sinewy, muscular and full of veins, having arteries as well. It is conical in shape, somewhat fatty; the arteries and veins, through which blood and pneuma are distributed, grow out from it. In another way: the heart is muscular, having a conical shape and two ventricles, in which are generated the innate heat and the vital pneuma. The arteries grow out from it, also the veins grow out from it. Through these, both the life-bearing seed and the innate heat are supplied to the whole body.”

Καρδία ἐστὶ νευρώδης καὶ μυώδης καὶ φλεβώδης, ἔχουσα καὶ ἀρτηρίας. κωνοειδὴς τῷ σχήματι, ὑποπίμελος, ἐξ ἧς ἐκπεφύκασιν ἀρτηρίαι καὶ φλέβες δι' ὧν ἐπιπέμπεται αἷμα καὶ πνεῦμα. ἄλλως. καρδία ἐστὶ μυώδης, ἔχουσα σχῆμα κωνοειδὲς καὶ δύο κοιλίας ἐν αἷς γεννᾶται τὸ ἔμφυτον θερμὸν καὶ τὸ ζωτικὸν πνεῦμα. ἐξ ἧς ἐκπεφύκασιν ἀρτηρίαι καὶ φλέβες ἐκφύονται. δι' ὧν χορηγεῖται τῷ παντὶ σώματι ὅ τε ζωτικὸς γόνος καὶ ἡ ἔμφυτος θερμασία.

Ps.-Galen, Medical Definitions 49 (XIX 360 Kühn)

Pseudo-Galen, what is nature?

“Nature is an artistic fire proceeding on the way to generation and actively moving out of itself. According to Plato, it is defined differently: nature is divine art; or, nature is a sort of artistic power. A different definition: nature is inflamed pneuma moving out of itself, generating, completing and maintaining the human being in accordance with spermatic powers. Or it is defined in this way: nature is a power moving out of itself, a cause of generation, formation, and completion producing and completing a human being. Nature is said to be mixture, and nature is said to be state. Nature is also said to be a motion in accordance with effort. Nature is said to be the power controlling an animal. It can also be defined in this way: nature is the inflamed pneuma moving out of itself, generating, completing and maintaining a human being in accordance with spermatic principles determining lifetime and size.”

Φύσις ἐστὶ πῦρ τεχνικὸν ὁδῷ βαδίζον εἰς γένεσιν καὶ ἐξ ἑαυτοῦ ἐνεργητικῶς κινούμενον. ἑτέρως κατὰ Πλάτωνα. φύσις ἐστὶ θεία τέχνη. ἢ φύσις ἐστὶν οἵα τεχνικὴ δύναμις. ἑτέρως. φύσις ἐστὶ πνεῦμα ἔνθερμον ἐξ ἑαυτοῦ κινούμενον καὶ κατὰ τὰς σπερματικὰς δυνάμεις γεννῶν τε καὶ τελειοῦν καὶ διατηροῦν τὸν ἄνθρωπον. ἢ οὕτως. φύσις ἐστὶ δύναμις ἐξ ἑαυτῆς κινουμένη, αἰτία γενέσεώς τε καὶ διαπλάσεως καὶ τελειότητος γεννῶσά τε καὶ τελειοῦσα τὸν ἄνθρωπον. φύσις καὶ ἡ κρᾶσις λέγεται, φύσις καὶ ἡ ἕξις. φύσις καὶ ἡ καθ' ὁρμὴν κίνησις. φύσις καὶ ἡ διοικοῦσα τὸ ζῶον δύναμις λέγεται. δύναται δὲ καὶ οὕτως ὁρίσασθαι. φύσις ἐστὶ πνεῦμα ἔνθερμον ἐξ ἑαυτοῦ κινούμενον κατὰ σπερματικοὺς λόγους γεννῶν τε καὶ τελειοῦν καὶ διατηροῦν τὸν ἄνθρωπον ἐν χρόνοις καὶ μεγέθεσιν ὡρισμένους.

Ps.-Galen, Medical Definitions 95 (XIX 371 Kühn)