In each separate thing that you do consider the matters which come first, and those which follow after, and only then approach the thing itself.
Ἑκάστου ἔργου σκόπει τὰ καθηγούμενα καὶ τὰ ἀκόλουθα καὶ οὕτως ἔρχου ἐπ᾿ αὐτό.
Original text (Ancient Greek)