I consider it a mark of great prudence in a man to abstain from threats or any contemptuous expressions, for neither of these weaken the enemy, but threats make him more cautious, and the other excites his hatred, and a desire to revenge himself.
There is simply no comparison between a man who is armed and one who is not. It is simply unreasonable to expect that an armed man should obey one who is unarmed, or that an unarmed man should remain safe and secure when his servants are armed.
Men ought either to be well treated or crushed, because they can avenge themselves of lighter injuries, of more serious ones they cannot; therefore the injury that is to be done to a man ought to be of such a kind that one does not stand in fear of revenge.
Thus it is well to seem merciful, faithful, humane, sincere, religious, and also to be so; but you must have the mind so disposed that when it is needful to be otherwise you may be able to change to the opposite qualities.
Thus it happens in matters of state; for knowing afar off (which it is only given a prudent man to do) the evils that are brewing, they are easily cured. But when, for want of such knowledge, they are allowed to grow so that everyone can recognize them, there is no longer any remedy to be found.
Conquered states that have been accustomed to liberty and the government of their own laws can be held by the conqueror in three different ways. The first is to ruin them; the second, for the conqueror to go and reside there in person; and the third is to allow them to continue to live under their own laws, subject to a regular tribute, and to create in them a government of a few, who will keep the country friendly to the conqueror
And what physicians say about disease is applicable here: that at the beginning a disease is easy to cure but difficult to diagnose; but as time passes, not having been recognized or treated at the outset, it becomes easy to diagnose but difficult to cure. The same thing occurs in affairs of state; for by recognizing from afar the diseases that are spreading in the state (which is a gift given only to the prudent ruler), they can be cured quickly; but when, not having been recognized, they are not recognized and are left to grow to the extent that everyone recognizes them, there is no longer any cure.
A multitude is strong while it holds together, but so soon as each of those who compose it begins ro think of his own private danger, it becomes weak and contemptible.
And the prince who has relied solely on their words, without making other preparations, is ruined, for the friendship which is gained by purchase and not through grandeur and nobility of spirit is merited but is not secured, and at times is not to be had.
No proceeding is better than that which you have concealed from the enemy until the time you have executed it. To know how to recognize an opportunity in war, and take it, benefits you more than anything else. Nature creates few men brave, industry and training makes many. Discipline in war counts more than fury.
And if such malignity is hidden for a time, it proceeds from the unknown reason that would not be known because the experience of the contrary had not been seen, but time, which is said to be the father of every truth, will cause it to be discovered.