Niccolò Machiavelli
Discourses on the First Decade of Titus Livius (Chap. 1.44)
That the Multitude is helpless without a Head: and that we should not with the same breath threaten and ask leave.

When Virginia died by her father's hand, the commons of Rome withdrew under arms to the Sacred Hill. Whereupon the senate sent messengers to demand by what sanction they had deserted their commanders and assembled there in arms. And in such reverence was the authority of the senate held, that the commons, lacking leaders, durst make no reply. "Not," says Titus Livius, "that they were at a loss what to answer, but because they had none to answer for them;" words which clearly show how helpless a thing is the multitude when without a head.

This defect was perceived by Virginius, at whose instance twenty military tribunes were appointed by the commons to be their spokesmen with the senate, and to negotiate terms; who, having asked that Valerius and Horatius might be sent to them, to whom their wishes would be made known, these declined to go until the decemvirs had laid down their office. When this was done, and Valerius and Horatius came to the hill where the commons were assembled, the latter demanded that tribunes of the people should be appointed; that in future there should be an appeal to the people from the magistrates of whatever degree; and that all the decemvirs should be given up to them to be burned alive. Valerius and Horatius approved the first two demands, but rejected the last as inhuman; telling the commons that "they were rushing into that very cruelty which they themselves had condemned in others;" and counselling them to say nothing about the decemvirs, but to be satisfied to regain their own power and authority; since thus the way would be open to them for obtaining every redress.

Here we see plainly how foolish and unwise it is to ask a thing and with the same breath to say, "I desire this that I may inflict an injury." For we should never declare our intention beforehand, but watch for every opportunity to carry it out. So that it is enough to ask another for his weapons, without adding, "With these I purpose to destroy you;" for when once you have secured his weapons, you can use them afterwards as you please.