Authors:

I'm not unhappy," he said. "Only people with no purpose are unhappy. I've got a purpose.

Cassandra Clare (2011). “Cassandra Clare: The Mortal Instrument Series (4 books): City of Bones; City of Ashes; City of Glass; City of Fallen Angels”, p.163, Simon and Schuster
I'm not unhappy, he said. Only people with no purpose are unhappy. I've got a purpose.