“You never think it will happen to you. You think about what it would be like. You go through it over and over in your mind, changing the scenario slightly each time, but deep down, you don't really believe it would ever happen, because it's something that happens to someone else, not to you.”

“When you start thinking about what your life was like 10 years ago--and not in general terms, but in highly specific detail--it's disturbing to realize how certain elements of your being are completely dead. They die long before you do. It's astonishing to consider all the things from your past that used to happen all the time but (a) never happen anymore, and (b) never even cross your mind. It's almost like those things didn't happen. Or maybe it seems like they just happened to someone else. To someone you don't really know. To someone you just hung out with for one night, and now you can't even remember her name.”

“I know what it's like when people go away. It's agony for a week, then painful for a week, then you begin to forget, and then it seems as it never happened, it happened to someone else, and you start shrugging. You say, dingo, it's life, that's the way the things are. Stupid things like that. As if you haven't really lost something for ever.”

“It's not what happens to you that determines your happiness. It's how you think about what happens to you.”

“In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.”

“Getting angry over something that won't change is like seeing what happens if you hit your hand with a hammer over and over again, and being surprised each time when it hurts. So you might as well stop doing it.”