Tuck Everlasting chap. 12

In chapter 12, Tuck tells Winnie, "You can't live without dying.  So you can't call it living, what we got.  We just are, we just be, like rocks beside a road."  What do you think Tuck is trying to tell Winnie about his life as an immortal?  support your answers with details from the text.  

I think what Tuck is trying to tell Winnie is the way he and his family are living is not a happy life most of the time.  I think this because throughout chapter 12, when Tuck is explaining to Winnie his family's lifestyle, he does not sound like the happiest person in the world.  I know this because the text says,"I want to grow again." He said fiercly. (pg.64)  But dying's apart of the wheel, right there next to being born.  Being part of the whole thing, that's a blessing.  But it's passing us by, us Tucks."(pg.63)  "And  people.  But never the same ones.  Always coming in new, always the way it's supposed to be."(pg.62)  I used these pieces of evidence because they are all about Tuck grieving over not being able to live a normal life and not being happy.