οὐ μὴν ἀλλά: see note on E. 33.
διὰ τούτων: i. e. the reasons already given.
συνιδεῖν: lit. ‘see together’, so ‘see at a glance’.
περὶ δὲ τῶν λοιπῶν κτἑ, ‘but in the other points we should best see how superior monarchies are in respect of necessary deliberation and action, if we set side by side and try to examine one by one the most important spheres of action’ (i. e. as performed by monarchy and by other forms of government).
ἰδιῶται γίγνονται, ‘pass into private life again.’