Beautiful quote

Here is a beautiful quote which I came across reading a book from an unknown author, yes the author is unknown because, in early 19th and  late 20^th century controversial writers usually kept their name hidden, publishers would print their name or put a false name, so that no problem arise in the future, the unknown writer would be safe if any trouble incurs, and would also have a full payment. .

The saying goes something like this.

"I am what I am regardless of what anyone does, by using my own personal ability to focus thoughts I can achieve alignment with myself.

I remain regardless of what others do to me and act according to what I am, not react to what they are."

After reading this  I pondered over it for a while , thinking it to be so true , it dashingly says about your self-confidence and how you should not let others get through it .