"Of course it's that easy," he said. "I simply haven't had the time."

Or the knowledge. Now that he knew that the Doctor was awake, he could silence him. He stopped in his walk and took a fluid step towards the Master.

"Or are you only saying that because he couldn't do it? He's the tumor. I'm the patient. The tumor takes a long time to kill the victim. All I need is a scalpel."