M. Tullius Cicero, On the Consular Provinces
C. D. Yonge, Ed.

[33] Therefore, he fought with the greatest success against those most valiant and powerful nations the Germans and Helvetians; and the other nations he alarmed and drove back and defeated, and accustomed to yield to the supremacy of the Roman people, so that those districts and those nations which were previously known to us neither by any one's letters, nor by the personal account of any one, nor even by vague report, have now been overrun and thoroughly examined by our own general, by our own army, and by the arms of the Roman people.

Hitherto, O conscript fathers, we have only known the road into Gaul. All other parts of it were possessed by nations which were either hostile to this empire, or treacherous, or unknown to us, or, at all events, savage, barbarian, and warlike;—nations which no one ever existed who did not wish to break their power and subdue: nor has any one, from the very first rise of this empire, ever carefully deliberated about our republic, who has not thought Gaul the chief object of apprehension to this empire. But still, on account of the power and vast population of those nations, we never before have had a war with all of them; we have always been content to resist them when attacked. Now, at last, it has been brought about that there should be one and the same boundary to our empire and to those nations.