More than two thousand years ago, the great Greek philosopher Socrates was condemned to death for making seditious comments against the city state of Athens. His followers and disciples were legion. Ranging from Xenophon, the mercenary warrior and historian of the Peloponnesian War to the scholarly Plato, Socrates was described as the conscience-keeper of the nation, or the “gadfly” who would not let the massive machinery of the state rest in complacence. The Apology of Socrates by Plato was thought to have been written following Socrates trial and death in 399 BC. It is one of many such...