ὤνευον ἀναδούμενοι τοὺς σταυρούς

From LSJ

ἃ γὰρ δεῖ μαθόντας ποιεῖν, ταῦτα ποιοῦντες μανθάνομεν → what we have to learn to do we learn by doing

Source

English > Greek (Woodhouse Quotes Reversed)

they hauled up the stakes by putting ropes round them