First come I. My name is Jowett.
There’s no knowledge but I know it.
I am Master of this College,
What I don’t know isn’t knowledge.
Satirical verses like this are a tradition of First stanza of the Balliol College at Oxford, the style and meter are known as Balliol rhyme. This is from The Masque of B-ll–l, a longer poem consisting of such ditties. Jowett (I have restored the vowels for better readability) is Benjamin Jowett, Master of the aforementioned college.