Having kids has proven to be this amazing - for me, this amazing source of ideas of anecdotes, of examples, I can test my own kids without human subject permission, so they pilot - I pilot my ideas on them. And so it is a tremendous advantage to have kids if you're going to be a developmental psychologist.
The enjoyment we get from something is powerfully influenced by what we think that thing really is. This is true for intellectual pleasures, such as the appreciation of paintings and stories, and it is true as well for pleasures that seem simpler and more animalistic, such as the satisfaction of hunger and lust.
Part of the satisfaction of tattling surely comes from showing oneself to adults as a good moral agent, a responsible being who is sensitive to right and wrong. But I would bet that children would tattle even if they could do so only anonymously. They would do it just to have justice done.
Relying on the face might be human nature - even babies prefer to look at attractive people. But, of course, judging someone based on the geometry of his features is, from a moral and legal standpoint, no better than judging him based on the color of his skin.
It's really difficult working with kids and with babies because they are not cooperative subjects: they are not socialized into the idea that they should cheerfully and cooperatively give you information. They're not like undergraduates, who you can bribe with beer money or course credit.
Perhaps looking out through big baby eyes - if we could - would not be as revelatory experience as many imagine. We might see a world inhabited by objects and people, a world infused with causation, agency, and morality - a world that would surprise us not by its freshness but by its familiarity.
The emotions triggered by fiction are very real. When Charles Dickens wrote about the death of Little Nell in the 1840s, people wept - and I'm sure that the death of characters in J.K. Rowling's 'Harry Potter' series led to similar tears.
Some scholars argue that although the brain might contain neural subsystems, or modules, specialized for tasks like recognizing faces and understanding language, it also contains a part that constitutes a person, a self: the chief executive of all the subsystems.
The irrationality of disgust suggests it is unreliable as a source of moral insight. There may be good arguments against gay marriage, partial-birth abortions and human cloning, but the fact that some people find such acts to be disgusting should carry no weight.
Natural selection shaped the human brain to be drawn toward aspects of nature that enhance our survival and reproduction, like verdant landscapes and docile creatures. There is no payoff to getting the warm fuzzies in the presence of rats, snakes, mosquitoes, cockroaches, herpes simplex and the rabies virus.
You'd expect, as good Darwinian creatures, we would evolve to be fascinated with how the world really is, and we would use language to convey real-world information, we'd be obsessed with knowing the way things are, and we would entirely reject stories that aren't true. They're useless. But that's not the way we work.
We are naturally moral beings, but our environments can enhance - or, sadly, degrade - this innate moral sense.
Even in the most peaceful communities, an appetite for violence shows up in dreams, fantasies, sports, play, literature, movies and television. And, so long as we don't transform into angels, violence and the threat of violence - as in punishment and deterrence - is needed to rein in our worst instincts.
Some of the natural world is appealing, some of it is terrifying, and some of it grosses us out. Modern people don't want to be dropped naked into a swamp. We want to tour Yosemite with our water bottles and G.P.S. devices. The natural world is a source of happiness and fulfillment, but only when prescribed in the right doses.
A sympathetic parent might see the spark of consciousness in a baby's large eyes and eagerly accept the popular claim that babies are wonderful learners, but it is hard to avoid the impression that they begin as ignorant as bread loaves.
If evil is empathy erosion, and empathy erosion is a form of illness, then evil turns out to be nothing more than a particularly awful psychological disorder.
If our wondrous kindness is evidence for God, is our capacity for great evil proof of the Devil?
Morality is often seen as an innovation, like agriculture and writing. From this perspective, babies are pint-sized psychopaths, self-interested beings who need to be taught moral notions such as the wrongness of harming another person.
Modern science tells us that the conscious self arises from a purely physical brain. We do not have immaterial souls.
Imagination is Reality Lite - a useful substitute when the real pleasure is inaccessible, too risky, or too much work.
