We are living in the era of the unification of humankind. Humanity will survive or perish together. So far, self-destruction seems more likely than survival. What is the reason for the self-destructiveness of the human species? This is the crucial question of our time. Finding an answer to this question is the most important ethical and intellectual challenge of our era. Humankind can survive only by building its internal relationships on the basis of self-knowledge. Only in this way we ca...