Answer:
Your own person.
Explanation:
In the year 1785, Immanuel Kant a concept in phylosophy which is known as the Categorical Imperative. The Categorical Imperative was proposed do that one can use it to determine why people behave towards a specific action. Although there are many formulations of the Categorical Imperative, three of them are highly recognized.
The first formulation of the Categorical Imperative can be summarized as you doing things to others what you want them to do to you.
Just like it is given in the question, the second formulation of the Categorical Imperative states:
"Act so that you treat humanity, whether in YOUR OWN PERSON or in that of another, always as an end and never as a means only."
==> Note that the capitalized words are the missing words to be fill in the gap. In the second formulation of categorical imperative we need to study something called imperfect duty. But, since the question does not involve that, i will have to stop here.
