Meanwhile, we argued with one another on the building premises. From day to day I was becoming better informed than my companions in the subjects on which they claimed to be experts. Then a day came when the more redoubtable of my adversaries resorted to the most effective weapon they had to replace the force of reason. This was intimidation and physical force. Some of the leaders among my adversaries ordered me to leave the building or else get flung down from the scaffolding. As I was quite alone I could not put up any physical resistance; so I chose the first alternative and departed, richer however by an experience.