private houses, those are thought to be best and most useful for their different purposes which are distinct and separate from each other, and built in the modern manner, after the plan of Hippodamus: but for safety in time of war, on the contrary, they should be built as they formerly were; for they were such that strangers could not easily find their way out of them, and the method of access to them such as an enemy could with difficulty find out if he proposed to besiege them. A city therefore should have both these sorts of buildings, which may easily be contrived if any one will so regulate them as the planters do their rows of vines; not that the buildings throughout the city should be detached from each other, only in some parts of it; thus elegance and safety will be equally consulted. With respect to walls, those who say that a courageous people ought not to have any, pay too much respect to obsolete notions; particularly as we may see those who pride themselves therein continually confuted by facts. It is indeed disreputable for those who are equal, or nearly so, to the enemy, to endeavour to take refuge within their walls—but since it very often happens, that those who make the attack are too powerful for the bravery and courage of those few who oppose them to resist, if you would not suffer the calamities of war and the insolence of the enemy, it must be thought the part of a good soldier to seek for safety under the shelter and protection of walls more especially since so many missile weapons and machines have been most ingeniously invented to besiege cities with. Indeed to neglect surrounding a city with a wall would be similar to choosing a country which is easy of access to an enemy, or levelling the eminences of it; or as if an individual should not have a wall to his house lest it should be thought that the owner of it was a coward: nor should this be left unconsidered, that those who have a city surrounded with walls may act both ways, either as if it had or as if it had not; but where it has not they cannot do this. If this is true, it is not only necessary to have walls, but care must be taken that they may be a proper ornament to the city, as well as a defence in time of war; not only according to the old methods, but the modern improvements also:
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