Nationalism is nothing less than a psychological self destruction. When one goes beyond the need of identity, a strong sense of security and wellbeing often demonstrates in confidence and self control resulting in showing empathy and trust in others. Trust and empathy unite our societies, while fear, low self esteem, anxiety and primitivism as well as an illusion of control results in new nations, new religions, new states and countries, rarely without bloody wars and human suffering. To conclude, nationalism is nothing more than a self esteem of fools, a very dangerous cognitive or psychological error created by our faulty thinking patterns. So far it caused nothing more than horrible, irreversable and devastating damage to human race. Einstein was wrong when he sad that nationalism is just an infantile disease, in my eyes, nationalism is not only an illusion with no future, it is the cancer to human race. I am shocked by the fact that every second two people die from war conflict around the globe, while cancer takes a life every 14 seconds. Nationalism is constantly promoted and on the rise, even 28 times more deadlier than cancer. As a rational human being I felt the urge to write this book which will hopefully create an impact on the humanity and save lives of many. As mentioned earlier in my previous books, fight against the nature is the mission impossible, however, we all must give our best in that regard. In Hemingway's novel, The old man and sea, an old fisherman Santiago didn't give up fighting the nature and I think we should all follow his steps at all costs.