18. It is certainly not the least charm of a theory that it is refutable; it is precisely thereby that it attracts the more subtle minds. It seems that the hundred-times-refuted theory of the "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it.

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.