πλινθίς
From LSJ
κακὸς μὲν γὰρ ἑκὼν οὐδείς → no one is voluntarily wicked, no one is voluntarily bad
English (LSJ)
ίδος, ἡ, Dim. of πλίνθος,
A stone cut in the shape of a brick, IG22.1668.26. 2 square or check, Callix. 1. b = πλινθίον 111.1, for a kind of cross-word puzzle, Puchstein Epigr.Gr.p.7, PMag.Par.1.1305. 3 sundial, Plu.2.410e. 4 paper-weight(?), AP6.295.6 (Phan.). 5 block of land 6,000 ft. square, = Lat. laterculus, Hygin. in Corp.Agrimens.Rom. ip.85 Thulin. 6 block of wood inserted to strengthen the χοινικίδες, Ph.Bel.57.35. 7 block of fish-pemmican, Agatharch.34. II number squared and multiplied by a smaller number, Theo Sm.p.41 H., Nicom.Ar.2.6, 17, Anon. in Tht.43.22. III = πλινθίον 11.1, Corp.Herm.16.13.