Answer: Because the more understanding people are for others' situations, the more likely others are to feel remorse for your own situation.
Yes, you do, whether you are paraphrasing or quoting, if you are using information you got from somewhere else you always want to cite it. All you have to do is put the author and page number in parenthesis next to the quote or information you paraphrased. Ex. This person said this (PersonLastName Pg#)