Would you please explain what the author means by the following quote? 1. "The judiciary, from the nature of its functions, will always be the...

The important part of this quote is the part about the
judiciary having neither force nor will.  This is why, he says, the judicial branch is
the one that is least likely to take away our rights.  What he means by the line about
force or will is that the judicial branch cannot force anyone to do anything.  It has no
army, it has no police force.  It has to rely on the executive branch to carry out its
commands.  Therefore, the executive branch could pretty much veto anything the judicial
branch says.

Think of the example of the "Little Rock 9." 
The Supreme Court said the school had to be integrated.  But they could not force the
school district to integrate.  The school district only integrated when President
Eisenhower sent in troops to force it to do so.  This means that the Supreme Court
didn't really force integration -- the President did.

So
the Court has no way to force people to obey it and that is why it is the least
dangerous branch (according to this quote).