What do philosophers do? What is the point or purpose of philosophy in today's world? Are there any notable figures in the forefront of society like Socrates or Plato? In your discussion, be sure to include your own definition of knowledge (and please answer whether knowledge implies truth). Also weigh in on who [person or authority] or what [collective body or group] determines what counts as objective fact and what counts as subjective opinion. Word Count 400 No Format.