Each man has his own vocation. The talent is the call. There is one direction in which all space is open to him. He has faculties silently inviting him thither to endless exertion. He is like a ship in a river; he runs against obstructions on every side but one; on that side all obstruction is taken away, and he sweeps serenely over a deepening channel into an infinite sea. This talent and this call depend on his organization, or the mode in which the general soul incarnates itself in him. He inclines to do something which is easy to him, and good when it is done, but which no other man can do. He has no rival. For the more truly he consults his own powers, the more difference will his work exhibit from the work of any other. His ambition is exactly proportioned to his powers. The height of the pinnacle is determined by the breadth of the base. Every man has this call of the power to do somewhat unique, and no man has any other call. The pretence that he has another call, a summons by name and personal election and outward "signs that mark him extraordinary, and not in the roll of common men," is fanaticism, and betrays obtuseness to perceive that there is one mind in all the individuals, and no respect of persons therein.
Ralph Waldo Emerson