The Optional Society Wien and the question of demarcation: FACR and the question of demarcation: the dividing line between science and philosophy (KrUger) Russell acknowledged the influence of Wittgenstein in several places in the 1918 lectures on logical atomism What is the character of this new optional society so early displayed in the United States but today emerging in many other countries and com municated wherever nations confront socio economic problems of their own This image was inspiring enough to build up the free institutions which together with the country's open frontiers broke the hold of mass poverty