What are the motifs in Accidental Death of an Anarchist by Dario Fo?

Truth and insanity are recurring ideas.The play's core theme is embodied in the character of the Maniac, a somewhat paradoxical combination of fanatic truth teller and contented liar. His very existence raises the question of what is in fact madness: does it truly mean being dissociated from reality, or does it mean simply seeing reality in a different way from everyone else?