Possible Clues:

• I had got to the tent, it seems, silly me!
• Being a fool, I'd rebel right away
• Unwise person
• One heartless sod -- and brainless
• Silly that there's five hundred and ten in it
• One sod of course forgetting verse in Dumbo
• Fool's way of speaking endless tripe that's not mature
• No genius, he
• I had associated with Greek character, not a cretin
• Fool's clipped way of speaking initially tiresome