he aim of this paper is to analyse the role of human dignity to justify the ethical duties presented by Kant in the Doctrine of Virtue. First, I will examine the meaning of treating the humanity of a person as an end in itself. I will highlight Kant's position that a person does not have a price but an absolute worth, that is, dignity. Thus, in the second and third parts of this work, I will comment on the justification of some of the duties of virtue in order to clarify the concept of dignity.