Against Onetor I
Demosthenes
Demosthenes. Vol. IV. Orations, XXVII-XL. Murray, A. T., translator. Cambridge, MA: Harvard University Press, 1936 (printing).
As it was, they could not induce their friends, who were more honest men than themselves, to bear witness to the payment of the money, and they thought that, if they produced other witnesses, not related to them, you would not believe them. Again, if they said the payment had been made all at once, they knew that we should demand for examination by torture the slaves who had brought the money. These, if the payment had not been made, they would have refused to give up, and so they would have been convicted of fraud. But if they maintained that they had paid the money without witnesses in the manner alleged, they thought to escape detection.