Three visions play with prologue and epilogue Those witnesses of shocks who think that the victims will learn something will be wrong. While the masses remain the object of politics, everything that happens to them, they perceive not as experience, but as rock; Having survived the shock, they will learn about his nature no more than the experimental rabbit about the laws of biology. Bertolt Brecht Prologue for those Actors: Henry Bauman, a doctor, under 30 years.