This is nothing, fool.
Then 'tis like the breath of an unfee'd lawyer; you
gave me nothing for't. Can you make no use of
Why, no, boy; nothing can be made out of nothing.
[To KENT] Prithee, tell him, so much the rent of
his land comes to: he will not believe a fool.
In this conversation, the Fool takes Kent’s initial “nothing” and turns it to mean something different (see the two italicized words above).
What does each of these characters mean when he says “nothing”?