in the second paragraph, how does Thoreau aay the government helps people ?

I do not have the text in front of me, but I can provide you gradesaver's summary of this section. In the meantime, I'll see if I can pull up an e-text and take a look at the second paragraph for you in its original context.

http://www.gradesaver.com/civil-disobedience/study-guide/section2/