M. Tullius Cicero In Catilinam 3.18

[18]
  Although all these things, O Romans, have been so managed by men that they appear to have been done and provided for by the order and design of the immortal gods; and as we may conjecture this because the direction of such weighty affairs scarcely appears capable of having been carried out by human wisdom; so, too, they have at this time so brought us present aid and assistance, that we could almost behold them without eyes. For to say nothing of those things, namely, the firebrands seen in the west in the night time, and the heat of the atmosphere,—to pass over the falling of thunderbolts and the earthquakes,—to say nothing of all the other portents which have taken place in such number during my consulship, that the immortal gods themselves have been seeming to predict what is now taking place; yet, at all events, this which I am about to mention, O Romans, must be neither passed over nor omitted.