" Second, since our understanding of reality is imperfect, the criterion by which choices may be judged is not fully within our grasp. As a result, people will not necessarily make the correct choice and, even if they do, not everybody will accept it as such. Moreover, the correct choice represents merely the better of the available alternatives, not the best of all possible solutions. New ideas and interpretations may emerge at any time. These are also bound to be flawed and may have to be discarded when the flaws become apparent. There is no final answer, only the possibility of a gradual approximation to it. It follows that the choice between alternatives involves a continuous process of critical examination rather than the mechanical application of fixed rules. "

― George Soros , Soros on Soros: Staying Ahead of the Curve