When Socrates finally stood up to face his charges in front of his fellow citizens in a religious court in the Athenian agora, he articulated one of the great pities of human society. “It is not my crimes that will convict me,” he said. “But instead, rumour, gossip; the fact that by whispering together you will persuade yourselves that I am guilty.” As another Greek author, Hesiod, put it, “Keep away from the gossip of people. For rumour [the Greek pheme, via fama in Latin, gives us our word fame] is an evil thing; by nature she’s a light weight to lift up, yes, but heavy to carry and hard to put down again. Rumour never disappears entirely once people have indulged her.