Only what I know
No more no less
What I do is what I know
What I know is what I do 
No more no less
I do not know
And what I know is nothing
Nothing is what I do
I do nothing and know nothing
No thing knows nothing
Nothing is known by no thing
I do no thing
I know no thing
No, I do not know what.
Know what? No, I do not know, what?
Only.  What?  I know.