A person, place or thing is commonly referred to as a:
a. Noun
Explanation:
A noun is the name of the person, place, quality, idea or thing. Ideas are better communicated when the person is acquitted with more noun words. There are many categories in which the noun are divided. Common nouns are the words which are referred to common things. Proper nouns are the words which are specifically identified with a particular person, place or thing. A collective noun is a noun used to signify the collection or group of things. An abstract noun is a noun used to denote any idea, thought or feeling.
The quote mentions that this world is doing its best to change us and make us basic like everyone else, but by being nobody else BUT yourself is resisting the most powerful battle that you can fight.