Besides Plato, three other important sources exist for the study of Socrates: Aristophanes, Aristotle, and Xenophon. Since no extensive writings of Socrates himself survive to the modern era, his actual views must be discerned from the sometimes contradictory reports of these four sources. The main sources for the historical Socrates are the Sokratikoi logoi, or Socratic dialogues, which are reports of conversations apparently involving Socrates.[4] Most information is found in the works of Plato and Xenophon.[5][6]