# Περὶ φυτῶν αἰτιῶν 2.3.4

Theophrastus, Περὶ φυτῶν αἰτιῶν, Book 2, Chapter 3. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theophrastus/text-2/2.3.4

αἴτιον δὲ ἡ θερμότης καὶ ἡ ξηρότης· οἷον γὰρ πῦρ γίνεται, συμμετρίας δέ τινος δεῖται καὶ τὸ ὅμοιον. ὡσαύτως δὲ οὐδ᾽ ἐν τοῖς ψυχροῖς ἔνια φύεται τῶν ψυχρῶν διὰ τὴν αὐτὴν αἰτίαν. ἔστι δὲ καὶ τῶν ἐναντίων δῆλον ὅτι συμμετρία τις πρὸς ἄλληλα ὥστε τὰ μὲν δύνασθαι βλαστάνειν τὰ δὲ μή· ἀεὶ γὰρ δεῖ λόγον τινὰ ἔχειν τὴν κρᾶσιν τῆς φύσεως πρὸς τὸ περιέχον. ἔοικε δὲ κοινὸν εἶναι τοῦτο καὶ ἐπὶ τῶν ζώων· καὶ γὰρ τὰ ζῶα καθ᾽ ἑκάτερον τῶν τόπων ἴδια τυγχάνει τὰ μὲν δεχόμενα τὰ δ᾽ οὐ δεχόμενα τὴν τοῦ ἀέρος διάθεσιν, ὁτὲ δὲ καὶ τροφὰς οὐκ ἔχοντα τὰς οἰκείας. ἐνδέχεται γὰρ καὶ τοῦτο κωλύειν ὁμοίως καὶ τὰ ζῶα καὶ τὰ φυτὰ τάχα δὲ καὶ ἑτέρας πλείους αἰτίας αἳ πρὸς τὰς ἰδίας φύσεις εἰσὶν ἐναντίαι.

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Theophrastus, Περὶ φυτῶν αἰτιῶν, ed. Friedrich Wimmer. 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.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0093.tlg002.local001/.