Tractatus Logico-Philosophicus. Ludwig Wittgenstein

untouched a very large part of Mr Wittgenstein’s theory, though possibly not the part upon which he himself would wish to lay most stress. As one with a long experience of the difficulties of logic and of the deceptiveness of theories which seem irrefutable, I find myself unable to be sure of the rightness of a theory, merely on the ground that I cannot see any point on which it is wrong. But to have constructed a theory of logic which is not at any point obviously wrong is to have achieved a work of extraordinary difficulty and importance. This merit, in my opinion, belongs to Mr Wittgenstein’s book, and makes it one which no serious philosopher can afford to neglect.

      BERTRAND RUSSELL.

       May 1922.

       DEDICATED

      TO THE MEMORY OF MY FRIEND

      DAVID H. PINSENT

      Motto: . . . und alles, was man weiss, nicht bloss rauschen und brausen gehört hat, lässt sich in drei Worten sagen.

      KÜRNBERGER.