你行不行?

"我说你行，你就行。
我说你不行，你就不行。
你说你行，我说你不行，
你也是不行。
你说你不行，我说你行，
你还是行!"

"I say you're okay, then you're okay.
I say you're not okay, then you're not okay.
You say you're okay, I say you're not okay.
You're still not okay.
You say you're not okay, I say you're okay, you still are okay."

Do you know where that quote is from?