The concept of natural rights is most clearly contained in the Declaration when it states that human beings are endowed with the rights of "life, liberty, and the pursuit of happiness"
Those are not rights granted by the Government but are natural rights bestowed on all mankind.
Anton's disregard for the entire speech of Callie after he concluded she is not a credible speaker because she is stumbled on some of her words is a clear barrier to listening. Callie still communicated good information but because Anton had concluded she isn't worth listening to, he had not listened and gotten the information Callie was passing.
if your question is asking : What act of Parliament taxed paper items in order to raise money to help pay the government's debt? then the answer would be the stamp act.