Roald Dahl said this quote

The writer walks out of his workroom in a daze. He wants a drink. He needs it. It happens to be a fact that nearly every writer of fiction in the world drinks more whisky than is good for him. He does it to give himself faith hope and courage. A person is a fool to become a writer. His only compensation is absolute freedom. He has no master except his own soul and that I am sure is why he does it.