ἀνάγκη τὸ κινοῦν ἀντικινεῖσθαι → what incites movement must suffer a counter-movement
subs.
Carelessness: P. and V. ῥᾳθυμία, ἡ.
Imprudence: P. and V. ἀβουλία, ἀσυνεσία (Eur., Frag.); see rashness.
Inconsiderateness: P. ἀγνωμοσύνη, ἡ.