“I remember a story I once heard about drowning: that when you fall into cold water it's not that you drown right away but that the cold disorients you and makes you think that down is up and up is down, so you may be swimming, swimming, swimming for your life in the wrong direction, all the way toward the bottom until you sink. That's how I feel, as though everything has been turned around.”

“I'm swimming," Caspian announced. "Sort of. Do you think that will interfere with my mermaid search? If I fall into the ocean and I'm not drowning, do you think she'll bother to save me?""I think your mermaid probably has a life," Wills said..."You can't count on her to be waiting around for you every day. So drowning on purpose makes you an idiot.”

“How could you teach someone to survive? You pointed them in the right direction and hoped they'd swim, not sink. Waving, not drowning. There are more important things in life than individual happiness. It was an easy trap to fall into, mistaking a lack of self-direction for an expression of love.”

“To have faith is to trust yourself to the water. When you swim you don't grab hold of the water, because if you do you will sink and drown. Instead you relax, and float.”

“He knew how to handle pain. You had to lie down with pain, not draw back away from it. You let yourself sort of move around the outside edge of pain like with cold water until you finally got up your nerve to take yourself in hand. Then you took a deep breath and dove in and let yourself sink down it clear to the bottom. And after you had been down inside pain a while you found that like with cold water it was not nearly as cold as you had thought it was when your muscles were cringing themselves away from the outside edge of it as you moved around it trying to get up your nerve. He knew pain.”

“The Doctor: Just had a fall. All the way down there, right to the library. Heck of a climb back up.Amelia: You're soaking wet. The Doctor: I was in the swimming pool. Amelia: You said you were in the library. The Doctor: So was the swimming pool.”