All Have Sinned

Theognis 615-616 (tr. J.M. Edmonds):

Of the men of our time the Sun beholdeth none that is altogether good and reasonable.

οὐδένα παμπήδην ἀγαθὸν καὶ μέτριον ἄνδρα
    τῶν νῦν ἀνθρώπων ἠέλιος καθορᾷ.

Xenophon, Hellenica 6.3.10 (tr. Carleton L. Brownson):

For I see that no one in the world remains always free from error.

ὁρῶ γὰρ τῶν ἀνθρώπων οὐδένα ἀναμάρτητον διατελοῦντα.