Lecture, exhortation, dissertation, harangue. These are all synonyms for “talking”, which is what the subject of actor/director/playwright Tim Blake Nelson’s new play Socrates --- now playing at The Public Theater extended through June 2nd as the anchor of Onassis USA Festival 2019: Democracy is Coming --- is best known for. In fact, he made a life, death and immortality out of being a relentless orator, so much so that a man born in 470 B.C.E. is still a topic of modern tongues and his tradition of thought, theories and philosophies are taught as required curriculum at any liberal arts school