βλεπτέον
From LSJ
νεκρὸν ἐάν ποτ' ἴδηις καὶ μνήματα κωφὰ παράγηις κοινὸν ἔσοπτρον ὁρᾶις· ὁ θανὼν οὕτως προσεδόκα → whenever you see a body dead, or pass by silent tombs, you look into the mirror of all men's destiny: the dead man expected nothing else | if you ever see a corpse or walk by quiet graves, that's when you look into the mirror we all share: the dead expected this
English (LSJ)
one must look, εἴς τι Pl.Lg.965d, Arist.APr.44a36, etc.
Spanish (DGE)
hay que observar τί ποτ' ἔστιν εἰς ὃ β. Pl.Lg.965d, εἰς τὰ προειρημένα β. Arist.APr.44a36, cf. Plot.6.5.2.
Greek (Liddell-Scott)
βλεπτέον: ῥημ. ἐπίθ., πρέπει τις νὰ ἴδῃ, νὰ ἀποβλέψῃ, εἴς τι Πλάτ. Νόμ. 965D.
Greek Monotonic
βλεπτέον: ρημ. επίθ. του βλέπω, πρέπει κάποιος να κοιτάξει, σε Πλάτ.