Remember that introverts react not only to new people, but also to new places and events. So don’t mistake a child’s caution in new situations for an inability to relate to others. He’s recoiling from novelty or overstimulation, not from human contact. Introverts are just as likely as the next kid to seek others’ company, though often in smaller doses
Every one of our sinful actions has a suicidal power on the faculties that put that action forth. When you sin with the mind, that sin shrivels the rationality. When you sin with the heart or the emotions, that sin shrivels the emotions. When you sin with the will, that sin destroys and dissolves your willpower and your self-control. Sin is the suicidal action of the self against itself. Sin destroys freedom because sin is an enslaving power.