Obstacles are like wild animals. They are cowards but they will bluff you if they can. If they see you are afraid of them... they are liable to spring upon you; but if you look them squarely in the eye, they will slink out of sight.
Defeat may test you; it need not stop you. If at first you don't succeed, try another way. For every obstacle there is a solution. Nothing in the world can take the place of persistence. The greatest mistake is giving up.