“In my experience, insecure people constantly need to show that they are superior to others, whether they are or not, and they will often stoop to unscrupulous tactics to achieve this, the most common being to persistently mock, criticize, and put others down, the objective being to lower the status of the other person in the eyes of others, thus easing their own feelings of insecurity, and inadequacy. Secure people, on the other hand, do not have this need.”
Book:Laowai