Full Idea
A violator of the rights of man intends to use the person of others merely as a means, not considering that they should be used only as beings who must themselves be able to share in the end of the very same action.
Gist of Idea
Rational beings have a right to share in the end of an action, not just be part of the means
Source
Immanuel Kant (Groundwork of the Metaphysic of Morals [1785], 430.68)
Book Reference
Kant,Immanuel: 'The Moral Law (Groundwork of Morals)', ed/tr. Paton,H.J. [Hutchinson 1948], p.92