Regarding persistence

"Those months schooled me in patience: now I could propound a complete theory of patience in several ponderous volumes. The gist of it would be that after every failure it is necessary to examine yourself and ask, 'Look here, perhaps you are wrong?' If you are wrong, get off the rostrum and shut up. But if you are right, do not believe your eyes: that defeat is not a defeat. 'No' is no answer. Wait an hour and start right over again from the beginning." - Vladimir (Ze'ev) Jabotinsky, writing about his attempts to organize a Jewish Legion to fight the Ottoman Turks alongside the British in Palestine during WWI (quoted in pp 169-170, "Lone Wolf" by Shmuel Katz, publisher: Barricade Books, 1996).