"In essence, the optimistic style involves taking credit for successes but little blame for failures."

"If you have had to force yourself to do something, you are less willing or less able to exert self-control when the next challenge comes around. The phenomenon has been named ego depletion."

"System 1 is radically insensitive to both the quality and the quantity of the information that gives rise to impressions and intuitions."

"The prominence of causal intuitions is a recurrent theme in this book because people are prone to apply causal thinking inappropriately, to situations that require statistical reasoning."

"There's a lot of randomness in the decisions that people make."

"Much of the discussion in this book is about biases of intuition. However, the focus on error does not denigrate human intelligence, any more than the attention to diseases in medical texts denies good health."

"People who are cognitively busy are also more likely to make selfish choices, use sexist language, and make superficial judgments in social situations."

"Indeed, there is evidence that people are more likely to be influenced by empty persuasive messages, such as commercials, when they are tired and depleted."

"The goal of venture capitalists is to call the extreme cases correctly, even at the cost of overestimating the prospects of many other ventures."

"One of the significant discoveries of cognitive psychologists in recent decades is that switching from one task to another is effortful, especially under time pressure."

"You can do several things at once, but only if they are easy and undemanding."

"You know you have made a theoretical advance when you can no longer reconstruct why you failed for so long to see the obvious."

"It is much easier to strive for perfection when you are never bored."

"When people believe a conclusion is true, they are also very likely to believe arguments that appear to support it, even when these arguments are unsound."

"An inability to be guided by a “healthy fear” of bad consequences is a disastrous flaw."

"Conflict between an automatic reaction and an intention to control it is common in our lives."

"The worse the consequence, the greater the hindsight bias."

"Because it is much easier, as well as far more enjoyable, to identify and label the mistakes of others than to recognize our own. Questioning what we believe and want is difficult at the"

"I am my remembering self, and the experiencing self, who does my living, is like a stranger to me."

"Do we still remember the question we are trying to answer? Or have we substituted an easier one?"

"I used to be self conscious about my height, but then I thought, fuck that, I'm Harry Potter."

"I don't know where my romanticism comes from. My mom and dad would read to me a lot. 'Treasure Island,' 'Robinson Crusoe,' tales of chivalry and knights, things like that. Those are the stories I loved growing up."

"Being in Harry Potter is like being in the Mafia. Once you are in, you are never really out."

"There's no "blueprint "for where I should be. I see myself as a young, good actor who still has a lot to learn. There's nobody at any point in their career who is the finished article."

"Don't try too hard to be something you're not."

"It's interesting because people assume that because I'm famous I know all famous people."

"A friend often says I'm an old man in a young man's husk. I like that. I am old-fashioned in some ways."

"My dad's got a brilliant eye for scripts 'cos he's a literary agent. He and my agent read a load of scripts and filter them."

"There's no shame in enjoying a quiet life. And that's been the realization of the past few years for me."

"I'm thrilled of the acceptance I get abroad. The people are so hearty, warm and grateful and I feel privileged having seen so many countries and some of the greatest monuments."

"I see myself doing Harry Potter films as long as I'm enjoying it and as long as they are going to challenge me as an actor. I want to be an actor - it's my aspiration - so I want to do other films. I want to write something and I want to direct something!"

"The most wonderful thing I hear is people coming up and saying 'Thank you for my childhood', which still blows my mind but is very sweet."

"I don't know what to do with it. I'm very fortunate to have it, and it gives you room to maneuver. But the main thing about having money is it means you don't have to worry about it. And that for me is a lovely thing. It's not for fast cars and hookers."

"I'm possibly a very morbid person but I think about death a lot."

"That's why I don't understand why actors become arrogant and are completely unapproachable - because as an actor, the most valuable thing you can do is talk to people and hear their stories, because it'll all come in handy."

"People tell me I look mournful. They say, 'Cheer up, Dan, it's not that bad!' Sometimes I just look into space, which freaks people out. If I was ever required to do anything other than look haunted, I could. I'm a happy person."

"I was fortunate enough to meet Sophie Dahl. And I'm slightly in love with Scarlett Johansson: she's just stunning. And she's bright, which is incredibly sexy."

"I think it's useful, as a famous person, to have as little separation between the perception of you and how you really are - because otherwise I'd be sitting here thinking I'm keeping secrets, and wondering when you're going to find out."

"I haven't always been thrilled with my work. But the fear of not proving the people wrong who think you can't emerge from a franchise and do well, that's a very strong driving force."

"I'm quite confident, but I don't fancy myself. I don't really care about how I look."

"For ages, in my lunch hours, I would just go round and choreograph fight scenes. For fun. So now I'm very good at being thrown around. I bounce, in the words of my friends."

"I'm not clumsy, I'm accident-prone!"

"It's very rare that I get stopped or get asked for an autograph or anything - none of which I mind - but people don't really care that much."

"I like science and I love gym. Oh, and I like art, but I'm really bad at it. I'm just a terrible drawer. I can't draw a circle. Even with a ruler, I can't draw a straight line."

"The nerds are the ones that make the films and do loads of other really cool stuff in their life."

"I was in the bath at the time, and my dad came running in and said, 'Guess who they want to play Harry Potter!?' and I started to cry. It was probably the best moment of my life."

"That's what fame does to you. You acquire another self."

"There are two types of poets: People who write poetically about their lives, and poets that live poetically and write about it."

"As much as I would love to be a person that goes to parties and has a couple of drinks and has a nice time, that doesn't work for me. I'd just rather sit at home and read, or go out to dinner with someone, or talk to someone I love, or talk to somebody that makes me laugh."

"Ironing boards are a classic example of something I find horrible about modern society: the excitementation, for want of a better word, of mundane things."