The colour grey makes you feel uneasy, makes things seem complicated and hopeless, it upsets the notion of black and white. Good and evil? There is no such thing. There is a little good and a evil, a little black and a little white. Grey is not an attractive colour, but perhaps it is the one that describes the world most accurately.
But men are now united in states; that work is done; why now maintain exclusive devotion to one's own state, when this produces terrible evils for all.
Change is always subjective. To talk of evil and misery is nonsense, because they do not exist outside. If I am immune from all anger, I never feel angry. If am immune from all hatred, I never feel hatred.