εἰσιτέον
From LSJ
ἄνθρωπος ὢν ἥμαρτον· οὐ θαυμαστέον → being human I made a mistake; there is nothing remarkable about it
English (LSJ)
A one must go in, Iamb.VP23.105, al.
Spanish (DGE)
hay que ir εἰ. εἴσω δ' ἐστίν Men.Cith.63, cf. Iambl.VP 105.