Everything About Fiction You Never Wanted to Know.
"To express oneself badly is not only faulty as far as the language goes, but does some harm to the soul."
Socrates (attributed)

Socrates, commonly considered the father of philosophy, was an Athenian philosopher who lived from 469-399 BCE, when he was executed in the wake of the Peloponnesian War (of which, interestingly, he was a veteran, having served with distinction at Delium in an earlier phase of the war). Despite his reputation, he was not, by any stretch, the first philosopher -- earlier philosophers certainly existed and are, in fact, known as the "pre-Socratic philosophers".

He disapproved of writing, and so is known chiefly through the writings of his student Plato. (Another of his students, Xenophon, also wrote about him, but his works are less known.) Socrates taught and inspired many prominent young Athenians, from the aforementioned Plato to Alcibiades. (Plato even devoted a good chunk of his Symposium to defending against the common charge that Socrates had an affair with Alcibiades).

The story goes that the Oracle at Delphi described Socrates as the wisest man in Greece, and Socrates, a simple bricklayer, set out to disprove this claim by seeking out all the most knowledgeable men in Greece and demonstrating that they knew more than he did. It always backfired, because Socrates, possessing basic reasoning skills, could always see and point out the massive holes in everyone's claims. For example, he tried to get Euthyphro, an esteemed religious expert, to put forth a workable definition of "piety". None of Euthyphro's attempts held up under scrutiny, and eventually he gave up and went away.

Take everything you read about Socrates with a grain of salt: Plato was very fond of putting his own words in his teacher's mouth, and it's hard to tell how much of Socrates's dialogue in Plato's works are Socrates's words and how much are Plato's. (This is described academically as the "Socratic problem".) The Apology (Plato) is usually considered the most faithful work, and it covers Socrates's trial and conviction on charges of corrupting the youth and introducing new gods. If one reads between the lines in Republic and Symposium, it's quite possible that Socrates was guilty on both counts, though he vigorously denied the charges in court. Aristophanes lambasted him without mercy in The Clouds.

Socrates provides examples of the following tropes: