The terms ‘structural injustice’ and ‘systemic injustice’ are commonly used, but their meanings are elusive. In this paper, I sketch an ontology of social systems that embeds accounts of social structures, relations, and practices. On this view, structures may be intrinsically problematic, or they may be problematic only insofar as they interact with other structures in the system to produce injustice. Because social practices that constitute structures set the backdrop for agency and identity, socially fluent agents reproduce the systems, often unknowingly and unintentionally. The account aims to capture how agents both depend on and enact structures, and do so in ways that, as Ta-Nehisi Coates says, ‘land on the body’.

“结构性不公正”和“系统性不公正”这两个词很常用，但它们的含义却难以捉摸。在这篇论文中，我勾画了一个社会系统的本体论，其中嵌入了对社会结构、关系和实践的描述。按照这种观点，结构可能本质上是有问题的，或者它们可能只是在与系统中的其他结构相互作用以产生不公正的情况下才有问题。因为构成结构的社会实践为代理和身份设置了背景，所以社交流利的代理人通常在不知不觉和无意中复制系统。该帐户旨在捕捉代理如何依赖和制定结构，并以 Ta-Nehisi Coates 所说的“着陆在身体上”的方式进行。