Never was the same nature more adaptable to things the most diverse—obedience and command. And so one could not readily have told whether he were dearer to the general or the army.
When any bold or difficult deed was to be done, there was no one whom Hasdrubal liked better to entrust with it, nor did any other leader inspire his men with greater confidence or daring.
To reckless courage in incurring dangers he united the greatest judgment when in the midst of them. No toil could exhaust his body or overcome his spirit. Of heat and cold he was equally tolerant. His consumption of meat and drink was determined by natural desire, not by pleasure.
His times of waking and sleeping were not marked off by day or night: what time remained when his work was done he gave to sleep, which he did not court with a soft bed or stillness, but was seen repeatedly by many lying on the ground wrapped in a common soldier’s cloak amongst the sentinels and outguards. His dress was in no way superior to that of his fellows, but his arms and horses were conspicuous.
Livy, The History of Rome