τολμητέον
Ὥσπερ αὐτοῦ τοῦ ἡλίου μὴ ὄντος καυστικοῦ, ἀλλ' οὔσης ζωτικῆς καὶ ζωοποιοῦ θέρμης ἐν αὐτῷ καὶ ἀπλήκτου, ὁ ἀὴρ παθητικῶς δέχεται τὸ ἀπ' αὐτοῦ ϕῶς καὶ καυστικῶς· οὕτως οὖν ἁρμονίας οὔσης ἐν αὐτοῖς τινὸς καὶ ἑτέρου εἴδους ϕωνῆς ἡμεῖς παθητικῶς ἀκούομεν → Just as although the Sun itself does not cause burning but has a heat in it that is life-giving, life-engendering, and mild, the air receives light from it by being affected and burned, so also although there is a certain harmony and a different kind of voice in them, we hear it by being affected.
English (LSJ)
A one must venture, etc., τάδ' E.Med.1051, Ion1387, cf. Com.Adesp. 18.16D.: c. inf., E.IT111: abs., ib.121, Pl.Lg.888a.
Greek (Liddell-Scott)
τολμητέον: ῥηματ. ἐπίθ. τοῦ τολμάω, δεῖ τολμᾶν, τολμητέον τάδε Εὐρ. Μήδ. 1051, Ἴων 1387· μετ’ ἀπαρεμφ., τολμητέον τοι ξεστὸν ἐν ναοῦ λαβεῖν ἄγαλμα ὁ αὐτ. ἐν Ι. Τ. 111· ἀπολ., αὐτόθι 121, Πλάτ. Νόμ. 888A. ΙΙ. τολμητέος, α, ον, ὃν δεῖ τολμᾶν, Γρηγ. Ναζ. Λόγ. 4, σ. 113D.
Greek Monotonic
τολμητέον: ρημ. επίθ. του τολμάω, αυτό που κάποιος πρέπει να τολμήσει, σε Ευρ.