Alison Gopnik

Being a developmental psychologist didn't make me any better at dealing with my own children, no. I muddled through, and, believe me, fretted and worried with the best of them.

As adults, when we attend to something in the world we are vividly conscious of that particular thing, and we shut out the surrounding world. The classic metaphor is that attention is like a spotlight, illuminating one part of the world and leaving the rest in darkness.

One of the things I say is, 'You want to know what it's like to be a baby? It's like being in love for the first time in Paris after four double espressos.' And boy, you are alive and conscious.

The brain knows the real secret of seduction, more effective than even music and martinis. Just keep whispering, 'Gee, you are really special' to that sack of water and protein that is a body, and you can get it to do practically anything.

What makes knowledge automatic is what gets you to Carnegie Hall - practice, practice, practice.

When nobody read, dyslexia wasn't a problem. When most people had to hunt, a minor genetic variation in your ability to focus attention was hardly a problem, and may even have been an advantage. When most people have to make it through high school, the same variation can become a genuinely life-altering disease.

Many philosophers say it's impossible to explain our conscious experience in scientific, biological terms at all. But that's not exactly true. Scientists have explained why we have certain experiences and not others. It's just that they haven't explained the special features of consciousness that philosophers care about.

The best scientific way to discover if one factor influences another is to do a controlled experiment.

Our babies are like penguins; penguin babies can't exist unless more than one person is taking care of them. They just can't keep going.

Scientists and philosophers tend to treat knowledge, imagination and love as if they were all very separate parts of human nature. But when it comes to children, all three are deeply entwined. Children learn the truth by imagining all the ways the world could be, and testing those possibilities.

If you wanted to design a robot that could learn as well as it possibly could, you might end up with something that looked a lot like a 3-year-old.

If you just, pretty much, take a random 15-month-old, just sit and watch them for 10 minutes and count out how many experiments, how much thinking you see going on, and it will put the most brilliant scientist to shame.