Legend of the Galactic Heroes

Yang Wen-Li: There are no such things as 'wars between absolute good and absolute evil' in human history. Instead, there exist wars between one subjective good and another subjective good, and conflicts between one righteous faith and another righteous faith. In the case of a unilateral war of aggression, the aggressor would believe in its own righteousness. That is why wars have never ceased. As long as humans believe in God and in righteousness, there is no way conflicts would ever disappear.