"Civilization can only revive when there shall come into being in a number of individuals a new tone of mind independent of the one prevalent among the crowd and in opposition to it. A new public opinion must be created privately and unobtrusively. The existing one is maintained by the press, by propaganda, by organization, and by financial influences which are at its disposal. The unnatural way of spreading ideas must be opposed by the natural one, which goes from man to man and relies solely on the truth of the thoughts and the hearer's receptiveness of new truth."