διώκει παῖς ποτανὸν ὄρνιν → a boy chases a bird on the wing, vain pursuit
Ar. and P. ἐπίπονος, χαλεπός, P. and V. βαρύς, προσάντης (Plato), V. πολύπονος, δυσπόνητος; see laborious.
