C. Julius Caesar, Gallic War

But judgment was not wanting to the barbarians; for their leaders ordered [the officers] to proclaim through the ranks "that no man should quit his place; that the booty was theirs, and for them was reserved whatever the Romans should leave; therefore let them consider that all things depended on their victory. Our men were equal to them in fighting, both in courage and in number, and though they were deserted by their leader and by fortune, yet they still placed all hope of safety in their valor, and as often as any cohort sallied forth on that side, a great number of the enemy usually fell. Ambiorix, when he observed this, orders the command to be issued that they throw their weapons from a distance and do not approach too near, and in whatever direction the Romans should make an attack, there give way (from the lightness of their appointments and from their daily practice no damage could be done them); [but] pursue them when betaking themselves to their standards again.