A clear bridge connecting the theory of spontaneous order and the issue of beauty in and for cities has not yet been developed. After a general exploration of the concept of beauty, this article builds an alternative idea of beauty, namely, beauty as spontaneity. In particular, it argues that beauty in the urban realm greatly depends on forms and orders that can hardly be comprehensively designed but rather emerge as the result of the freedom granted to multiple urban agents to express themselves in space. In this article the works of Jacobs and Romano are analysed and explored. Starting from some of their main ideas, the paper suggests certain planning and design tactics to nurture this kind of beauty and provides some essential ethical principles.

连接自发秩序理论和城市之美问题的清晰桥梁尚未建立。在对美的概念进行了全面的探索之后，本文构建了另一种美的概念，即自发性的美。特别是，它认为城市领域的美在很大程度上取决于形式和秩序，这些形式和秩序很难被全面设计，而是作为多个城市主体在空间中表达自己的自由的结果而出现的。本文对雅各布斯和罗马诺的作品进行了分析和探讨。论文从他们的一些主要思想出发，提出了一些规划和设计策略来培育这种美，并提供了一些基本的伦理原则。