What do we mean when we say person? Certainly, the subject of purposes, desires, dislikes, etc. And obviously something more, since many animals can be described similarly, but we do not consider them persons.

For someone to be a person in the full sense of the word, they must be a subject with a sense of self as a subject, a being that therefore plans their life and believes in values according to which their different plans seem better or worse, someone who can choose among them.

A contemporary discussion-deposition on our timeless problem regarding personhood.