M. Tullius Cicero Pro S. Roscio Amerino 123

[123] I think as follows; that he who wishes these men to be put to the question, whom it is evident were present when the murder was committed, is desirous to find out the truth; that he who refuses it, though he does not dare admit it in words, yet does in truth by his actions, confesses himself guilty of the crime. I said at the beginning, O judges, that I was unwilling to say more of the wickedness of those men than the cause required, and than necessity itself compelled me to say. For many circumstances can be alleged, and every one of them can be discussed with many arguments. But I cannot do for any length of time, nor diligently, what I do against my will, and by compulsion. Those things which could by no means be passed over, I have lightly touched upon, O judges; those things which depend upon suspicion, and which, if I begin to speak of them, will require a copious discussion, I commit to your capacities and to your conjectures.