I suppose it is with national as with private wealth. If a man keeps what he gains, he is duly grateful to fortune; if he loses it by his own imprudence, he loses along with it the sense of gratitude. So in national affairs, those who fail to use their opportunities aright, fail also to acknowledge the good that the gods have given; for every advantage in the past is judged in the light of the final issue. It is therefore our duty, men of Athens , to keep a careful eye on the future, that by restoring our prosperity we may efface the discredit of the past.