Writing requires the formulation of ideas, which is associated with the effort. The idea is something different from its formulation. Finding words is a work. Why idea itself is not enough? Because something drives us to write or to speak. It's something different than the expressed thought , that makes us to work so diligently to express this thought. Find words and form. This means that the cause of expression is not in its content. Content of the text has nothing to do with the real reasons for which it was created.