The Prince by Niccolo Machiavelli Chapter 8 Page 4

the regular steps of the military service, gained at the cost of a thousand hardships and hazards, he reached the princedom which he afterwards maintained by so many daring and dangerous enterprises. Still, to slaughter fellow-citizens, to betray friends, to be devoid of honour, pity, and religion, cannot be counted as merits, for these are means which may lead to power, but which confer no glory. Wherefore, if in respect of the valour with which he encountered and extricated himself from difficulties, and the constancy of his spirit in supporting and conquering adverse fortune, there seems no reason to judge him inferior to the greatest captains that have ever lived, his unbridled cruelty and inhumanity, together with his countless crimes, forbid us to number him with the greatest men; but, at any rate, we cannot attribute to Fortune or to merit what he accomplished without either.