Again, I would agree, Michael. But again, I would distinguish temperament from behavior.
In other words, by temperament, person Z. may be an introvert; he may also have an innate tendency towards depression; he may have artistic talent; he may be a very quiet type, etc. That is what Nature contributes to his personality. How these natural proclivities develop, or whether they develop at all, will depend primarily on Nurture -- that is, on the environment in which he is raised.
So, in essence, we are saying the same thing...
Joan |