I think I'm happy.
(I know you aren't)
I think I'm cool.
(I know you aren't)
I think I'm swell and I haven't got any shame at all.
(I know the shame fills your heart and it's all you think of)
I think I'm sad.
(Of course you are)
I think I'm dying.
(Of course you are)
How do you know?
(Because I know)