κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
ἀπροαιρέτως: непреднамеренно Arst., Diog. L.
involuntariamente
