Texts and e-mails travel no faster than phone calls and telegrams, and their content isn't necessarily richer or poorer.

Owning our past allows us to own our future.

We provide a secure, stable space for children to grow up in, so children will be able to take risks and have adventures and do things that are unexpected. If there isn't a risk that your children can fail, then you haven't succeeded as a parent.

Philosophers and psychologists have long puzzled over the question of how we know as much as we do despite our limited experiences. One way is to see how children learn. Another example is consciousness. The concept is usually explored by armchair academics. Looking at kids expands our conceptions of consciousness.

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

We pass our values, ideas and moral character on to our children, but we do that knowing that our children are going to revise our knowledge and reshape their values. There's something very paradoxical and profound about being a parent as opposed to parenting. We put in all this effort and energy not so that we can shape a child of a particular sort, but so that all sorts of possibilities can happen in the future.

Children are the most amazing thing in the universe, as far as I'm concerned. If you're worrying about how it's going to turn out, you aren't experiencing that day-to-day satisfaction of being with these incredible, extraordinary creatures. Every single one of them is the most incredible, extraordinary creature that you're ever going to want to see. I think the joy of having that deep relationship - that's the core of what being a parent is.