The Prince by Niccolo Machiavelli Chapter 17 Page 6

under any kind of control. Among other things remarkable in Hannibal this has been noted, that having a very great army, made up of men of many different nations and brought to fight in a foreign country, no dissension ever arose among the soldiers themselves, nor any mutiny against their leader, either in his good or in his evil fortunes. This we can only ascribe to the transcendent cruelty, which, joined with numberless great qualities, rendered him at once venerable and terrible in the eyes of his soldiers; for without this reputation for cruelty these other virtues would not have produced the like results.

Unreflecting writers, indeed, while they praise his achievements, have condemned the chief cause of them; but that his other merits would not by themselves have been so efficacious we may see from the case of Scipio,