Change is always subjective. All through evolution you find that the conquest of nature comes by change in the subject. Apply this to religion and morality, and you will find that the conquest of evil comes by the change in the subjective alone. That is how the Advaitic system gets its whole force, on the subjective side of man.
Roaming in thought over the Universe, I saw the little that is
Good steadily hastening towards immortality,
And the vast all that is called Evil I saw hastening to merge itself and become lost and dead.
Boredom is an evil that is not to be estimated lightly. It can come in the end to real despair. The public authority takes precautions against it everywhere, as against other universal calamities.
Evil had to manifest itself and fulfill its role, so that ultimately Good could prevail. [...] Evil needs to manifest itself, for them to understand the value of Good.
Being against evil doesn't make you good. Tonight I was against it and then I was evil myself. I could feel it coming just like a tide... I just want to destroy them. But when you start taking pleasure in it you are awfully close to the thing you're fighting.
Well used are those cruelties (if it is permitted to speak well of evil) that are carried out in a single stroke, done out of necessity to protect oneself, and are not continued but are instead converted into the greatest possible benefits for the subjects. Badly used are those cruelties which. although being few at the outset, grow with the passing time instead of disappearing. Those who follow the first method can remedy their condition with God and with men; the others cannot possibly survive.