κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → fortune is common to all, the future is unknown | fortune is common to all and the future unknown | fate is common to all and the future unknown
(see also: ἀνασκοπέω) examine
expendere, to weigh, examine, 1.132.2, 7.42.3.