Plato's Dialogues: Crito
To the sorrow of all of his friends and students, us included, Socrates has been condemned, and normally would have been executed shortly after the trial. However, a state galley had been sent on a sacred mission at about the same time and no executions could be carried out until it returned, so instead he sat in a jail cell for almost a month. Shortly before its return, Crito, one of Socrates' students, came to visit his teacher to say that he expected the ship to return soon, but that he could easily help Socrates escape by placing a few bribes.