Where there's life there's hope, and need of vittles.

And yet, Eomer, I say to you that she loves you more truly than me, for you she loves and knows; but in me she loves only a shadow and a thought: a hope of glory and great deeds, and lands far from the fields of Rohan. - Aragorn to Eomer, of Eowyn

Don't put a lump of rock under my elbow again!

Trolls simply detest the very sight of dwarves (uncooked).

But I have been too deeply hurt, Sam. I tried to save the Shire, and it has been saved, but not for me. It must often be so, Sam, when things are in danger: some one has to give them up, lose them, so that others may keep them.

out of the frying pan and into the fire

The War is not over (and the one that is, or the part of it, has been largely lost). But it is of course wrong to fall into such a mood, for Wars are always lost, and War always goes on; and it is no good growing faint.