"Our difficulty comes, of course, in deciding where ethical coercion ends and unethical violence begins. The only person who is able to escape from this dilemma is the complete anarchist who repudiates every form of restraint and compassion—and such a man has no solution to offer for the imminently menacing problems of the hour. All other persons are obliged to draw the line somewhere, and orderly progress depends upon intellectual keenness and ethical sensitiveness with which the situation is confronted."