The inhabitants constructed only as many gates as necessary for the traffic during peacetime. Wooden gates were often covered with metal, to resist damage from fire. Towers were built into the walls so that watchmen posted on them could see approaching enemies at a distance.
दूसरी ओर, वे लोग जो उससे घृणा नहीं करते, शारीरिक रूप से उससे दूर रहने पर भी मानसिक रूप से बुरी बातों में भाग लेने की इच्छा रखते हैं । — १२ / १, पृष्ठ २३.