19. Philosophers are accustomed to speak of the will as though it were the best-known thing in the world; indeed, Schopenhauer has given us to understand that the will alone is really known to us, absolutely and completely known, without deduction or addition. But it again and again seems to me that in this case Schopenhauer also only did what philosophers are in the habit of doing-he seems to have adopted a POPULAR PREJUDICE and exaggerated it.