Publius Flavius Vegetius Renatus — Roman Writer

Publius Flavius Vegetius Renatus, commonly referred to simply as Vegetius, was a writer of the Later Roman Empire. Nothing is known of his life or station beyond what he tells us in his two surviving works: Epitoma rei militaris, and the lesser-known Digesta Artis Mulomedicinae, a guide to veterinary medicine... (wikipedia)

A handful of men, inured to war, proceed to certain victory, while on the contrary, numerous armies of raw and undisciplined troops are but multitudes of men dragged to the slaughter.
The courage of a soldier is heightened by his knowledge of his profession.
We find that the Romans owed the conquest of the world to no other cause than continual military training, exact observance of discipline in their camps, and unwearied cultivation of the other arts of war.
Let him who desires peace prepare for war.
Valor is superior to number.