What was Garrison's motto in Narrative of the Life of Frederick Douglass? What did this mean?

This can be found in the book's preface, which was written
by William Lloyd Garrison.  At the very end of his preface, he gives his motto.  It
is

-"NO
COMPROMISE WITH SLAVERY! NO UNION WITH
SLAVEHOLDERS!"

What this
means is that Garrison is a very radical abolitionist.  He is much more radical, for
example, than Abraham Lincoln ever was (and this was written before anyone had ever
heard of Lincoln).

What he is saying is that Northerners
should never accept being in the same country as slaveholders.  He is saying that they
should not compromise to stay together.  What this means is he thinks they should ban
slavery immediately.