# The Historical, Political, and Diplomatic Writings of Niccolo Machiavelli/Volume 2/The Prince/Chapter 10

CHAPTER X.
IN WHAT MANNER THE POWER OF ALL PRINCIPALITIES SHOULD BE MEASURED.
In examining the nature of the different principalities, it is proper to consider another point; namely, whether a prince is sufficiently powerful to be able, in case of need, to sustain ​himself, or whether he is obliged always to depend upon others for his defence. And to explain this point the better, I say that, in my judgment, those are able to maintain themselves who, from an abundance of men and money, can put a well-appointed army into the field, and meet any one in open battle that may attempt to attack them. And I esteem those as having need of the constant support of others who cannot meet their enemies in the field, but are under the necessity of taking refuge behind walls and keeping within them. Of the first case I have already treated, and shall speak of it again hereafter as occasion may require. Of the second case I cannot say otherwise than that it behooves such princes to fortify the cities where they have their seat of government, and to provide them well with all necessary supplies, without paying much attention to the country. For any prince that has thoroughly fortified the city in which he resides, and has in other respects placed himself on a good footing with his subjects, as has been explained above, will not be readily attacked. For men will ever be indisposed to engage in enterprises that present manifest difficulties; and it cannot be regarded as an easy undertaking to attack a prince in a city which he has thoroughly fortified, and who is not hated by his people.
The cities of Germany enjoy great liberties; they own little land outside of the walls, and obey the Emperor at their pleasure, fearing neither him nor any other neighboring power; for they are so well fortified that their capture would manifestly be tedious and difficult. They all have suitable walls and ditches, and are amply supplied with artillery, and always keep in their public magazines a year’s supply of provisions, drink, and fuel. Moreover, by way of feeding the people without expense to the public, they always keep on hand a common stock of raw materials to last for one year, so as to give employment in those branches of industry by which the people are accustomed to gain their living, and which are the nerve and life of the city. They also attach much importance to military exercises, and have established many regulations for their proper practice.
A prince, then, who has a well-fortified city, and has not made himself odious to his people, cannot be readily attacked; and if any one be nevertheless rash enough to make the attempt, he would have to abandon it ignominiously, for the ​things of this world are so uncertain that it seems almost impossible that any one should be able to remain a whole year with his army inactive, carrying on the siege.
And if any one were to argue that, if the people who have possessions outside of the city were to see them ravaged and destroyed by the enemy, they would lose their patience, and that their selfish desire to protect their property would cause them to forget their attachment to the prince, I would meet this objection by saying, that a powerful and valiant prince will easily overcome this difficulty by encouraging his subjects with the hope that the evil will not endure long, or by alarming them with fears of the enemy’s cruelty, or by assuring himself adroitly of those who have been too forward in expressing their discontent.
It is, moreover, reasonable to suppose that the enemy will ravage and destroy the country immediately upon his arrival before the city, and whilst its inhabitants are still full of courage and eager for defence. The prince, therefore, has the less ground for apprehension, because, by the time that the ardor of his people has cooled somewhat, the damage has already been done, and the evil is past remedy. And then the people will be the more ready to stand by their prince, for they will regard him as under obligations to them, their houses having been burnt and their property ravaged in his defence. For it is the nature of mankind to become as much attached to others by the benefits which they bestow on them, as by those which they receive.
All things considered, then, it will not be difficult for a prudent prince to keep up the courage of his citizens in time of siege, both in the beginning as well as afterwards, provided there be no lack of provisions or means of defence.