“Lisa: It just seems a bit of a waste.Ed: Waste of what?Lisa: Waste of time… of life.Ed: That’s the point, isn’t it? To waste time until you die. You have to waste the time.”

“He was glad some of the pain was fading, had already faded so much since the first year. But it seemed more to be a trade off: with the pain went details and memories. People had said, ‘Time heals,’ but he realized time didn’t heal, time just eroded and confused, and he didn’t think that was the same thing at all.”

“She imagined people picking up the newspapers she dropped through their doors, reading about a world they never visited. For the first time it occurred to her that her classmates had been right. Except it wasn’t just one ghost, but many, one in every flat. Floating through the walls, communicating only through the strange words and symbols they left in the lift.”

“Leela: Why are we listening to them? It is a waste of time.The Doctor; It is difficult to know what will be a waste of time until after the time has been wasted, by which time it is too late. So predicting what will be a waste of time is something of a waste of time. Unless it gives you pleasure of course when it probably doesn't count as a waste of time.Leela (yawning): I am sorry I did not hear what you said, Doctor.The Doctor (smiling): That was a waste of time then.”

“I hate it here. I hate the way everyone looks at you. I hate the way everyone looks.”

“There is a certain elegance in wasting time. Any fool can waste money, but when you waste time you waste what is priceless.”

“Time you enjoy wasting is not wasted time.”