[102] [cap.36] One of them sent a swift messenger from the very scene of murder to Ameria, to his partner and his tutor; so that if every one wished to conceal his knowledge of whom the guilt belonged to, yet he himself placed his wickedness visibly before the eyes of all men. The other (if the immortal gods will only let him) is going to give evidence also against Sextus Roscius. As if the matter now in question were, whether what he said is to be believed, or whether what he did is to be punished. Therefore it was established by the custom of our ancestors, that even in the most insignificant matters, the most honourable men should not be allowed to give evidence in their own cause.