For in order to wage an effective war against such a power from the outside, indomitable courage and a ready spirit of sacrifice were necessary weapons. In such cases the bull must be seized by the horns. Furious drives may bring the assailant to the ground again and again; but if he has a stout heart he will stand up, even though some bones may be broken, and only after a long and tough struggle will he achieve his triumph. New champions are attracted to a cause by the appeal of great sacrifices made for its sake, until that indomitable spirit is finally crowned with success.