A&O+Vol.+1+Ch.+3+Trascendental+Reality+Developing+the+Spiritual+Traditions+of+India+and+Southwest+Asia

Source 17: Question 3: How do we know that Zarathustra believed Ahura Mazda would ultimately triumph over evil?
Source 17: Question 3: How do we know that Zarathustra believed Ahura Mazda would ultimately triumph over evil? It can be assumed that Zarathustra believed Ahura Mazda would ultimately triumph over evil because immortality was spoken of a fair amount. Such an idea would be unattainable if evil were to triumph over good.