When you live through the mind-made self comprised of thought and emotion that is the ego, the basis for your identity is precarious because thought and emotion are by their very nature ephemeral, fleeting. So every ego is continuously struggling for survival, trying to protect and enlarge itself. To uphold the I-thought, it needs the opposite thought of "the other." The conceptual "I" cannot survive without the conceptual "other." The others are most other when I see them as my enemies. At one end of the scale of this unconscious egoic pattern lies the egoic compulsive habit of faultfinding and complaining about others. Jesus referred to it when he said, "Why do you see the speck that is in your brother's eye, but do not notice the log that is in your own eye?" At the other end of the scale, there is physical violence between individuals and warfare between nations. In the Bible, Jesus' question remains unanswered, but the answer is, of course: Because when I criticize or condemn another, it makes me feel bigger, superior.
— Eckhart Tolle