When you confuse the ego that you perceive in others with their identity, it is the work of your own ego that uses this misperception to strengthen itself through being right and therefore superior, and through reacting with condemnation, indignation, and often anger against the perceived enemy. All this is enormously satisfying to the ego. It strengthens the sense of separation between yourself and the other, whose “otherness” has become magnified to such an extent that you can no longer feel your common humanity, nor the rootedness in the one Life that you share with each human being, your common divinity.

– Eckhart Tolle