τοὺς πολλοὺς φόβους ἐξαίρει τῶν πολιτῶν, ‘free your subjects from most of their fears,’ i.e. there must be a certain feeling of fear in their minds (e.g. fear of punishment) but other fears must be reduced to a minimum. This seems better than ‘the many fears to which they are liable’ (F.).
ποίει μὲν μηδὲν μετ᾽ ὀργῆς: cp. Cic. de Off. i. 38 “cum ira nihil recte fieri, nihil considerate potest.”
δόκει δέ: sc. ὀργίζεσθαι.
ὅταν σοι καιρὸς ᾖ, ‘when occasion arises.’ For the meaning of καιρός see note on E. 31.