What distinction does thoreau make between law and justice?

The correct answer is:  

The law is a means to justice.  

People obey the law because they believe is aligned with their social sense of justice. The law is not an end in itself, but solely a means to reach justice. When this connection between law and justice is forgotten, the laws themselves are bound to become a device of injustice.  

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

opinion because one person might not like silk