Crassus

But Cassius was once more greatly displeased, and though he stopped advising Crassus, who was angry with him, he did privately abuse the Barbarian. Basest of men, he said, what evil spirit brought you to us? With what drugs and jugglery did you persuade Crassus to pour his army into a yawning and abysmal desert and follow a route more fit for a robber chief of Nomads than for a Roman imperator?

But the Barbarian, who was a subtle fellow, tried to encourage them with all servility, and exhorted them to endure yet a little while, and as he ran along by the side of the soldiers and gave them his help, he would laughingly banter them and say: Is it through Campania that you think you are marching, yearning for its fountains and streams and shades and baths (to be sure !) and taverns? But remember that you are traversing the border land between Assyria and Arabia.