What punctuation mark is often used to insert exclamation text into a quotation

it is the nurture that decides the behavior of a child.

explanation:

naturally, children are pure. it is an environment and the type of attention a child gets that determines their behavior.  

kenny´s more than 25 years of relevant public service. in the army for two decades, as official representative for four years, and now for the department of state, as ambassador. this career clearly demonstrates great capacities in the public sector.