κατὰ τὸν δεύτερον, φασί, πλοῦν τὰ ἐλάχιστα ληπτέον τῶν κακῶν → we must as second best, as people say, take the least of the evils
in a line: P. and V. ἑξῆς, ἐφεξῆς.
keep abreast of, v.: use P. and V. ἕπεσθαι (dat.), συνέπεσθαι (dat.).