Jonas, The Giver, and Gabriel all stand out in the community because of their blue eyes. This difference shows the impossibility of the community's efforts to control nature completely, no matter how hard it tries. In addition, the fact that only the characters with blue eyes are able to see color (the rest of the community sees only in black and white) and to receive memories and feel true, deep emotion suggests that it is only those who are different who are able to notice the differences in others.