Though shyness per se was unacceptable, reserve was a mark of good breeding.

There are only a few people out there who can completely overcome their fears, and they all live in Tibet.

Ask your child for information in a gentle, nonjudgmental way, with specific, clear questions. Instead of “How was your day?” try “What did you do in math class today?” Instead of “Do you like your teacher?” ask “What do you like about your teacher?” Or “What do you not like so much?” Let her take her time to answer. Try to avoid asking, in the overly bright voice of parents everywhere, “Did you have fun in school today?!” She’ll sense how important it is that the answer be yes.

Now that you're an adult, you might still feel a pang of guilt when you decline a dinner invitation in favor of a good book. Or maybe you like to eat alone in restaurants and could do without the pitying looks from fellow diners. Or you're told that you're "in your head too much", a phrase that's often deployed against the quiet and cerebral. Or maybe there's another word for such people: thinkers.

What if you love knowledge for its own sake, not necessarily as a blueprint to action? What if you wish there were more, not fewer reflective types in the world?

I think the shyness one feels in childhood is often overcome with time. There are children who hide behind their parents' legs, but you don't see grown-ups hiding behind people. It just doesn't happen. I mean, not that often. People develop social skills over time.

INTROVERTS are especially vulnerable to challenges like marital tension, a parent’s death, or abuse. They’re more likely than their peers to react to these events with depression, anxiety, and shyness. Indeed, about a quarter of Kagan’s high-reactive kids suffer from some degree of the condition known as “social anxiety disorder,” a chronic and disabling form of shyness.