ἀνάγκη τὸ κινοῦν ἀντικινεῖσθαι → what incites movement must suffer a counter-movement
spastĭcus: a, um, adj., = σπαστικός,I afflicted with the cramp or spasms, spastic, Plin. 20, 22, 89, § 243; 21, 19, 17, § 132; 25, 5, 24, § 60.