The poet may say or sing, not as things were, but as they ought to have been; but the historian must pen them, not as they ought to have been, but as they really were.
Miguel de CervantesFor men may prove and use their friends, as the poet expresses it, usque ad aras, meaning that a friend should not be required to act contrary to the law of God.
Miguel de CervantesI believe there's no proverb but what is true; they are all so many sentences and maxims drawn from experience, the universal mother of sciences.
Miguel de Cervantes