"He chose a place for his camp of considerable strength, but where there was a scarcity of water; designing, it is said, by this means, also, to put an edge on his soldiers’ courage; and when several were not a little distressed, and complained of thirst, pointing to a river that ran near the enemy’s camp, “There,” said he, “you may have drink, if you will buy it with your blood.”" Source: Plutarch, John Dryden, and Arthur Hugh Clough. "Caius Marius." Plutarch's Lives. New York: Modern Library, 2001. 561. Print. Further Reading: https://en.m.wikipedia.org/wiki/Gaius_Marius