The discussion around dignity in nursing philosophy has been underway for many years. The literature still lacks philosophical arguments that would justify the thesis that all people have dignity. Scholars who defend dignity as an intrinsic value most often refer to Kant. However, Kant does not seem to be the most suitable candidate to defend the thesis that all human beings possess dignity. In this paper, I attempt to show that Aristotle's and Aquinas's views can help justify this thesis. To (...) this end, I distinguish between actual dignity, potential dignity, and existential dignity. I state that all human beings have existential dignity or potential dignity. (shrink)