“Once you've visited the underworld, you never forget the way back.”

“I went into the desert to forget about you. But the sand was the color of your hair. The desert sky was the color of your eyes. There was nowhere I could go that wouldn't be you.”

“Chucking her under her chin, he said, "What are you doing here, honey? You're not even old enough to know how bad life gets."And it was then Cecilia gave orally what was to be her only form of suicide note, and a useless one at that, because she was going to live: "Obviously, Doctor," she said, "you've never been a thirteen-year-old girl.”

“But what humans forget, cells remember. The body, that elephant”

“It might not even be that great to marry your ideal. Probably, once you attained your ideal, you got bored and wanted another.”

“If you grew up in a house where you weren't loved, you didn't know there was an alternative. If you grew up with emotionally stunted parents, who were unhappy in their marriage and prone to visit that unhappiness on their children, you didn't know they were doing this. It was just your life. If you had an accident, at the age of four, when you were supposed to be a big boy, and were later served a plate of feces at the dinner table - if you were told to eat it because you liked it, didn't you, you must like it or you wouldn't have so many accidents - you didn't know that this wasn't happening in the other houses in your neighborhood. If your father left your family, and disappeared, never to return, and your mother seemed to resent you, as you grew older, for being the same sex as your father, you had no one to turn to. In all these cases, the damage was done before you knew you were damaged. The worst part was that, as the years passed, these memories became, in the way you kept them in a secret box in your head, taking them out every so often to turn them over and over, something like dear possessions. They were the key to your unhappiness. The were the evidence that life wasn't fair. If you weren't a lucky child, you didn't know you weren't lucky until you got older. And then it was all you ever thought about.”

“My house fly theory is related to my theory about why time seems to go faster as you get older.""Why's that?" the girl asked."It's proportional," Leonard explained. "When you're five, you've only been alive a couple thousand days. But by the time you're fifty, you've lived around twenty thousand days. So a day when you're five seems longer because it's a greater percentage of the whole.”