διώκει παῖς ποτανὸν ὄρνιν → a boy chases a bird on the wing, vain pursuit
sure: P. and V. πιστός, ἀσφαλής, ἐχέγγυος (Thuc. but rare P.), φερέγγυος (Thuc. but rare P.).
incessant: V. διατελής; see incessant.
