Polybius

“For the mob, habituated to feed at the expense of others, and to have its hopes of a livelihood in the property of its neighbors, as soon as it has got a leader sufficiently ambitious and daring, being excluded by poverty from the sweets of civil honors, produces a reign of mere violence.”

“He indeed who believes that by studying isolated histories he can acquire a fairly just view of history as a whole, is, as it seems to me, much in the case of one, who, after having looked at the dissevered limbs of an animal once alive and beautiful, fancies he has been as good as an eyewitness of the creature itself in all its action and grace.”

“Those who know how to win are much more numerous than those who know how to make proper use of their victories.”

“But all historians, one may say without exception, and in no half-hearted manner, but making this the beginning and end of their labour, have impressed on us that the soundest education and training for a life of active politics is the study of History, and that surest and indeed the only method of learning how to bear bravely the vicissitudes of fortune, is to recall the calamities of others.”