Shakespeare's notoriously indecisive Hamlet once quips to Rosencrantz and Guildenstern that, although the world is full of prisons and 'dungeons': "There is nothing either good or bad, but thinking makes it so" (Hamlet Act II, scene 2). How does Hamlet's assertion exhibit consonance with or dissonance against Sartre's claim that ' existentialism is a humanism ? Moreover: how is Hamlet's claim echoed in at least on further thinker we have studied this semester?