The guy who loved to drink hemlock until he died from a poison overdose and then a friend claimed he was executed by the state for nagging the citizens with rhetorical questions?
What is the character's name? I forget he was a contemporary of Plato.
Contemporary is a stretch, Plato was 40 something years younger and spun tales about the younger years of the hemlock drinker who could not be bothered writing down his thoughts.