墙壁的功能之一,是一种阻隔,墙壁挡住了人们的视线,更挡住了人们的脚步,一道墙壁一旦树立起来,便有了内外之别,亲疏之分,有了等级,有了高低贵贱。有一些阻隔,一辈子也无法穿越。在古人那里,最早建立的墙壁,恐怕主要是为了防卫,墙壁总是与猛兽有关,与战争有关,与强盗有关,与人心 One of the functions of the wall is a barrier, blocking the wall of people’s attention, but also block the people’s footsteps, a wall once set up, there will be a difference between inside and outside, relatives and demerits, with the level, with high and low . There are some barriers, life can not cross. In the ancients, the earliest established walls were probably mainly for defense. The walls were always related to beasts, to war, to robbers, to hearts