ξένους ξένιζε, καὶ σὺ γὰρ ξένος γ' ἔσῃ → be hospitable to guests; you too will be a guest
P. λογισμός, ὁ, ἡ ἀριθμητική, ἡ λογιστική, P. and V. ἀριθμός, ὁ.
