Bolke to dekho!

(1)
If you understand, say "understand".
If you don't understand, say "don't understand".
But if you understand and say "don't understand".
How do I understand that you understand? Understand
(2)
I thought a thought.
But the thought I thought wasn't the thought I thought I thought.
If the thought I thought I thought had been the thought I thought, I wouldn't have thought so much.