Such are the facts. But our cause presents difficulties. For Nicias, both when he was depositing the money and when he tried to get it back, had no one with him, either freeman or slaveTransactions with a banker were generally conducted without witnesses; see Isoc. 17.2.; thus it is impossible either by torture of slaves or by testimony to get at the facts, but it is by circumstantial evidence that we must plead and you must judge which side speaks the truth.