海是没有墙的城鱼是没有亡的城
[hăi shì méi yŏu qiáng de chéng yú shì méi yŏu wáng de chéng]
Sea is the wall-less city and fish are its undestroyed part, this poetic sentence uses metaphor and creates an image that conveys endless freedom and peacefulness while also indicating permanence.