Some people find their vocations early.
Others, like the great engineer William LeRoy Emmet , do so only after a struggle. In Emmet's case, the struggle was worthwhile. It helped endow him with the tenacity and originality that make for an outstanding innovator. It proved the opportunity he had needed. Applying that knowledge to some problems that cropped up in the factory, he gained the self-confidence that he had up to that point lacked.