In a city, in a country, where violence is heard as a statement of courage (suicide bombs, murder in broad daylight, bloody clashes in the name of gangs or religion), we need to ask: what is the meaning of 'courage'?

It is a very old question. More than 2,000 years ago, a group of people gathered in a palaistra in Athens. They were debating that very thing: they were Socrates, two generals, and a few others. Plato, the pupil of the famous Socrates,