It is from their foes, not their friends, that cities learn the lesson of building high walls

It is from their foes, not their friends, that cities learn the lesson of building high walls

The quote "It is from their foes, not their friends, that cities learn the lesson of building high walls" speaks to the idea that it is often through conflict and adversity that cities are forced to fortify themselves and protect their citizens. Throughout history, cities have built walls as a means of defense against external threats, whether they be rival cities, invading armies, or other hostile forces. These walls serve as physical barriers that can deter potential attackers and provide a sense of security for those within.

The necessity of building walls is often realized in times of war or conflict, when cities are faced with the harsh reality of their vulnerability. It is during these times that cities must take measures to strengthen their defenses and ensure the safety of their inhabitants. The threat of attack forces cities to reevaluate their security measures and invest in the construction of walls and other fortifications.