Diogenes Laertius, Vitae philosophorum, R. D. Hicks (Translator), 10.1.50

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[50] They move with rapid motion;¹ and this again explains why they present the appearance of the single continuous object, and retain the mutual interconnexion which they had in the object, when they impinge upon the sense, such impact being due to the oscillation of the atoms in the interior of the solid object from which they come. And whatever presentation we derive by direct contact, whether it be with the mind or with the sense-organs, be it shape that is presented or other properties, this shape as presented is the shape of the solid thing, and it is due either to a close coherence of the image as a whole or to a mere remnant of its parts.² Falsehood and error always depend upon the intrusion of opinion³ (when a fact awaits) confirmation or the absence of contradiction, which fact is afterwards frequently not confirmed (or even contradicted) [ following a certain movement in ourselves connected with, but distinct from, the mental picture presented—which is the cause of error.]

Vitae philosophorum. Diogenes Laertius. R. D. Hicks (Translator). Cambridge, MA. 1925.

Funding provided by National Endowment for the Humanities Division of Preservation and Access.

Current edition Perseus

Lives of Eminent Philosophers (English) (Diogenes Laertius. Hicks, R. D., editor. Cambridge, MA.: Harvard University Press; London: William Heinemann Ltd., 1925.)

Editions (1)

Βίοι καὶ γνῶμαι τῶν ἐν φιλοσοφίᾳ εὐδοκιμησάντων Perseus (Diogenes Laertius. Hicks, R. D., editor. Cambridge, MA.: Harvard University Press; London: William Heinemann Ltd., 1925.) — 10.1.50 focus

[50] εἶτα διὰ ταύτην τὴν αἰτίαν τοῦ ἐνὸς καὶ συνεχοῦς τὴν φαντασίαν ἀποδιδόντων καὶ τὴν συμπάθειαν ἀπὸ τοῦ ὑποκειμένου σῳζόντων κατὰ τὸν ἐκεῖθεν σύμμετρον ἐπερεισμὸν ἐκ τῆς κατὰ βάθος ἐν τῷ στερεμνίῳ τῶν ἀτόμων πάλσεως. καὶ ἣν ἂν λάβωμεν φαντασίαν ἐπιβλητικῶς τῇ διανοίᾳ ἢ τοῖς αἰσθητηρίοις εἴτε μορφῆς εἴτε συμβεβηκότων, μορφή ἐστιν αὕτη τοῦ στερεμνίου, γινομένη κατὰ τὸ ἑξῆς πύκνωμα ἢ ἐγκατάλειμμα τοῦ εἰδώλου· τὸ δὲ ψεῦδος καὶ τὸ διημαρτημένον ἐν τῷ προσδοξαζομένῳ ἀεί ἐστιν 〈ἐπὶ τοῦ προσμένοντοσ〉¹ ἐπιμαρτυρηθήσεσθαι ἢ μὴ ἀντιμαρτυρηθήσεσθαι, εἶτʼ οὐκ ἐπιμαρτυρουμένου 〈ἢ ἀντιμαρτυρουμένου〉² [κατά τινα κίνησιν ἐν ἡμῖν αὐτοῖς συνημμένην τῇ φανταστικῇ ἐπιβολῇ, διάληψιν δὲ ἔχουσαν, καθʼ ἣν τὸ ψεῦδος γίνεται.]

Notes on the current edition

Lives of Eminent Philosophers

1. The reader is left to infer that, the more rapid the motion, the more continuous is the succession of fresh images. It is this uninterrupted train of images which guarantees the continued existence of the external object, just as their similarity or identity guarantees its oneness: cf. Lucr. iv. 87, 104 f., 189, 256 f., 714 f.; Cic. N.D. i. 105.

2. The film suffers from obstacles especially in its passage through the air, and is sometimes torn into tatters. When these reach the eye, the result is faulty perception; e.g. a square tower appears round, and the like: cf. Lucr. iv. 353-363, 379-390.

3. Cf.Fr. 247-254 (Us.); Lucr. iv. 462-468, 723-826.

Diogenes Laertius Vitae philosophorum 10.1.50

R. D. Hicks (Translator)

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