Who is Socrates from The Politics of Aristotle and what is their importance?

This was a man whom Plato wrote a great deal about. He was one of Plato's teachers although the role was informal. Socrates was both famous and infamous within the city-state of Athens. He made great headway against sophists, who were rhetoriticians of the era, but his ability to question and to threaten the security of others by undermining their knowledge of the definitions of the words and concepts they used led to his bad reputation. He became so unpopular with some of the city-state's leaders that he was offered the choice between banishment from Athens or the death penalty by ingesting poison. He selected the death sentence, declaring to the very end that Athens was his home, and beloved city-state.