At first we thought it would be easy to catch up to it.

This was an error.
When we ran faster it ran faster; when we stopped it stopped and looked round at us, and nodded.

(I daresay you won't swallow this, but you may safely.

It's as true as true, and so's all that about the goat.

I give you my sacred word of honour.) I tell you the pig nodded as much as to say-- 'Oh, yes.