The BFG looked at Sophie and smiled, showing about twenty of his square white teeth. 'Yesterday,' he said, 'we was not believing in giants, was we? Today we is not believing in snozzcumbers. Just because we happen not to have actually seen something with our own two little winkles, we think it is not existing. What about for instance the great squizzly scotch-hopper?'
'I beg your pardon?' Sophie said.
'And the humplecrimp?'
'What's that?' Sophie said.
'And the wraprascal?'
'The what?' Sophie said.
'And the crumpscoddle?'
'Are they animals?' Sophie asked.
'They is common animals,' said the BFG contemptuously. 'I is not a very know-all giant myself, but it seems to me that you is an absolutely know-nothing human bean. Your brain is full of rotten-wool.'
'You mean cotton wool,' Sophie said.
'What I mean and what I say is two different things,' the BFG announced rather grandly.
Now, how could anyone disagree with logic such as that? : )